$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$

$\frac{{\left(a+b\right)}^2}{2}-{\frac{\left(a-b\right)}{2}}^2$

${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

$\frac{a^2+b^2}{2}-\frac{a^{2-}{b}^2}{2}$

${\left(\frac{a+b}{2}\right)}^2+{\left(\frac{a-b}{2}\right)}^2$