$\int\left(\frac{2}{3}x\left(\sqrt[3]{5-\frac{1}{5}x^2}\right)\right)dx$

$4\left(8+3\cdot8\right)-\left(-9+7\right)$

$\left(15x+6\right)^2$

$\left(\cos\left(\frac{a}{2}\right)-\sin\left(\frac{a}{2}\right)\right)^2=1-\sin\left(a\right)$

$\left(7m^5n^9-14my^5\right)^2$

$77-4\left(8\right)-\left(8x\right)^2$

$x^2y-xy\cdot xy^2-4xy$