$3+w=-7$

$\lim_{x\to-3}\left(\frac{x^3-4x+15}{x^2-x+12}\right)$

$\int_0^1\left(1+x^2\right)^{\frac{1}{2}}dx$

$-2sinx\left(1-x^2\right)$

$\lim_{x\to0}\left(\frac{\cos\left(x^2\right)-\cos\left(\sin\left(2x^2\right)\right)}{x^4}\right)$

$\frac{8cos\left(x\right)sec\left(x\right)}{cot\left(x\right)}$

$3x^2+13x-10=0$