$7x^3-4x^2-7x^2$

$\frac{w}{-2.5}=8$

$-\left(13+\left(24\infty\right)\right)$

$-2+3a-4b+b-a$

$\sin\left(x\right)^2\cdot\cos\left(y\right)^2+\sin\left(x\right)^2\sin\left(y\right)^2=\sin\left(x\right)$

$\lim_{x\to\infty}\left(\frac{10\left(5+3x\right)}{1+0.04x}\right)$

$f\left(x\right)=-27x^{-3}+c$