$\int225-t^2dt$

$\:x\frac{dy}{dx}\:+\:xy\:=\:x^2y^4$

$-25m^{12}+\frac{49}{25}n^6$

$\left(1-\cos\left(-t\right)\right).\csc\left(t\right)$

$\int\left(\frac{3}{x^2\sqrt{1+x^2}}\right)dx$

$-\left(\left(-2\right)^23\right)^2+2\cdot\left(-5\right)$

$\frac{2^6.\left(0.5\right)^{-2}.32}{2^{-5}.2^7}$