$-7\left(-x-9\right)$

$\lim_{x\to0}\left(\frac{5\cdot tan\left(x\right)-5\cdot x}{7\cdot x^2}\right)$

$\lim_{x\to0}\left(\frac{6x+8\sqrt{9x-3}}{6}\right)$

$\frac{16x-25}{4x^2+19x-5}$

$p\left(x\right)+2q\left(x\right)-r\left(x\right)$

$\int\sqrt[3]{3-4x^2}\left(-8x\right)\:dt$

$115\left(41\right)$