$2\cdot7+\left(-4\right)-\left(-2\right)$

$\int\left(\frac{5}{x^6}\sin\left(\frac{1}{x^5}\right)\cos\left(\frac{1}{x^5}\right)\right)dx$

$\frac{y'}{x}=-y,\:y\left(1\right)=3$

$\int\frac{3a^2+6a+2}{a^2+3a+2}dx$

$3x-2<\left(x-2\right)$

$\cos\left(x^2\right)\cdot\sin\left(x^2\right)$

$\left(\frac{2p^3r^4}{2p^2r}\right)^3$