$\left(3y+5z\right)^2$

$x^3-5x^2+11x+17$

$9a^2+30abxy+25x^2y^2$

$\int_{-\frac{\pi}{4}}^{\frac{\pi}{4}}\left(\frac{\sin\left(10x\right)}{\cos^2\left(5x\right)}\right)dx$

$\left(15x^2y^52^7\right)\left(5xy^32^4\right)$

$\:\frac{x^3-2}{x^5+2x^4+x^3}$

$-14\cdot\left(-20\right)$