$\left(4a^2b-3c^3\right)\left(4a^2b+3c^3\right)$

$-6w^9+7w^4-w^f+6w^9-6w^4$

$\frac{-4x^4+0x^3+3x^2-1}{4x^2-1}$

$4y-3=3\left(3y+4\right)$

$\int_1^{+\infty}\left(\frac{\sqrt{x^2-1}}{x}\right)dx$

$\left(\frac{1}{\sqrt{x}}y\right)'=\frac{1}{2\sqrt{x}}$

$16m^2+8mn^7+n^{14}$