$\left(-10\right)\cdot\left(-10\right)\cdot\left(-10\right)\cdot\left(-10\right)\cdot\left(-10\right)$

$12j+2j-4+3j^2$

$\left(5x^2y^3+8xy^2\right)^2$

$12 \cdot 3 + 18 : ( - 2 + 8 )$

$\frac{dy}{dx}\left(\frac{1}{4}x^2\right)$

$- 3 x ^ { 2 } + 6 x + 1 = 0$

$\frac{\tan^2\left(37.5\right)\cdot tan^2\left(7.5\right)-1}{tan^2\left(37.5\right)-tan^2\left(7.5\right)}$