$7n^2\left(2n^2+3n+5\right)$

$\lim_{x\to2}\left(\frac{tan^2-\left(x-2\right)}{x^2-4}\right)$

$\left(2x^2y-4m\right)^3$

$\int5e^{w^2}dz$

$\int x^2\left(9+x^3\right)^4dx$

$8x^2+64x+128\ge254$

$\frac{\sin^2x}{\sec\left(x\right)+1}=\frac{1-\cos\left(x\right)}{\sec\left(x\right)}$