$40+56-18+2$

$\frac{3.14\cdot\sqrt[3]{3}\cdot\sqrt[3]{9}}{3}$

$x^{3\sqrt[4]{32x^5y^3}}$

$2\left(4+a\right)$

$\int\frac{\left(1+\sqrt{x}\right)^{\left(\frac{1}{2}\right)}}{7\sqrt{x}}dx$

$\int\left(x+7\right)e^{\left(2x+7\right)}dx$

$\left(\frac{x}{2}+1\right)\left(\frac{x}{2}-1\right)$