$\left(-\frac{1}{2}xy^2+4+\frac{3}{4}x^3y\right)\left(xy-\frac{1}{2}x^2y^2\right)$

$50\cdot50\cdot50\cdot50\cdot50\cdot50\cdot50\cdot50\cdot50\cdot50$

$4cos^2\left(4t\right)-4sin^2\left(4t\right)$

$\frac{3c^3+7c^2-4c+16}{c+3}$

$\left(4jk\right)^4$

$\left(+12\right)+\left(-1\right)-\left(-15\right)$

$-\frac{360}{-10}$