$\sqrt{75xw^9}$

$12x^2-75=0$

$\left(\cos\left(x\right)\cdot\left(\cos\left(x\right)-x\sin\left(x\right)\right)+\sin\left(x\right)\cdot\left(x\cos\left(x\right)\right)\right)$

$9s^2-6s+1$

$2senx-1=senx$

$\frac{1}{2}b-\frac{3}{7}b$

$\int\left(\frac{\cos\left(3x\right)}{\sqrt{2+\sin\left(3x\right)}}\right)dx$