$( 4 + x ) y ^ { 2 } = y ^ { 3 }$

$3\left(2a+5\right)$

$\int\left(\frac{3}{x^4\left(2+4x^{-3}\right)^7}\right)dx$

$\left|-10+\left(-2-3\right)-5\right|+\left|-\left(-8\right)+2\right|$

$x^2+x-2\cdot\left(x^2+3x\right)$

$\left(a\frac{2}{3}\right)^3c^4$

$\cos^2x-\sin^2x+3\cos+1=0$