$\int\left(12x^2+6x-5\right)dx$

$\lim_{x\to0}\left(\frac{1-\cos\left(3x\right)}{\sin\left(4x\right)}\right)$

$-\left|-\left(-4-3\right)-\left(5-3\cdot0\right)\right|$

$y^2-16y+16$

$\frac{1}{2}\times5\times10$

$a^2bc^3+d^2a^3-c^3;\:a=2,\:b=1,\:c=-2,\:d=4$

$\int sin\left(2x\right)sin^2\left(x\right)dx$