$7\left(-1\right)^4\left(2\right)^2+4\left(2\right)^3\left(-1\right)^2$

$2x^3=2y^2+5$

$\left(2^x\right)\cdot\left(x^2\:+x+\:1\right)$

$\left(b^2-36c^4\right)=\left(b+6c^2\right)\left(b-6c^2\right)$

$f\left(x\right)=-2\left(x+1\right)^2+18$

$0.036\cdot0.0013$

$\int7\cdot x\cdot e^{-x^2}$