$3\sin^2\left(u\right)-2\sin\left(u\right)=0$

$\frac{4a^2-9\left(ab\right)^2}{36}$

$\left|\left(\frac{3}{5}\right)^2\cdot\left(\frac{5}{3}\right)^2\right|^{-1}$

$2-9\left(-5+10\right)$

$-\left(-8\right)-\left(+26\right)$

$\left(3+2x^3\right)^5$

$2\cdot\left(4+2^5\right)$