$\left(-3x^3y^2z\right)^2\left(2x^4y^5z\right)$

$\sqrt{27}\cdot\sqrt{\frac{96}{81}}$

$\int_{-4}^4\left(-4x\right)dx$

$1^2+1^2\ln\left(x\right)$

$-3-5\cdot9$

$\int_1^2\sqrt{\left(x^2-3x+4\right)}dx$

$\int x\cdot xe^{\left(-x\left(1+y\right)\right)}\left(1+y\right)^2$