$\left(d^2+4d+4\right)y=2\left(x+3\right)$

$\frac{\left(\frac{\sin\:^2\left(x\right)}{\cos\:^2\left(x\right)}\right)^{\cos\:\left(x\right)}}{\sin^2\left(x\right)}$

$5\cdot0-6$

$y'=\frac{x+9x^4}{2yx^2}$

$13-\left(1+\left(-22\right)\right)$

$12x^2y^2+15xy^2+6x^2y$

$x^8\:+\:x^3-\:2\:$