$\left(y+\frac{1}{3}\right)^2$

$\lim_{p\to0}\left(\frac{1}{1-\left(1-p\right)e^{pt}}\right)$

$\left(\frac{2a^3c^3b^4\cdot2c^3}{\left(abc^3\right)^2}\right)^4$

$-5m^2+15m$

$18a^2b^2+48abcd+32c^2d\cdot2$

$\left(a^{x+1}-b^{x-1}\right)\cdot\left(b^{x+1}+a^{x-1}\right)$

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