$-458+230$

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

$\lim_{x\to-\infty}-\frac{1}{4}x^4-x^3$

$\int\frac{x^9}{\sqrt{1\:+\:x}}dx$

$\frac{\sin\left(a\right)\cos\left(a\right)}{\cos\left(a\right)\left(\sin\left(a\right)-\sin\left(a\right)\cos\left(a\right)\right)}$

$\left(1-w^5\right)\left(1+w^5\right)$

$\left(2x^3+9\right)^2$