$\int\left(\left(14x+4\right)cos\left(7x^2+4x\right)\right)dx$

$4\cdot1\cdot4-\left(0\right)^2$

$\tan\left(x\right)=3,2$

$\frac{\sin\left(x\right)\sin\left(5x\right)}{\cos\left(x\right)+\cos\left(5x\right)}$

$\left(n^3-8\right)\left(n^3+2\right)$

$\log\left(x^2-1\right)-\log\left(x+2\right)=2$

$10x^5+6x^4-28x^3-40x^2+58x\cdot2x^3+4x^2-8$