$\left(3+x^4\right)^4$

$3\log_c\left(w\right)-\frac{1}{2}\log_c\left(y\right)+5\log_c\left(z\right)$

$\int_{-\infty}^0\left(\frac{2x^2}{\left(x^2+1\right)^2}\right)dx$

$tan\left(\sqrt{7x}\right)$

$\frac{10^n}{\left(-9\right)^{n-1}}$

$\left(\frac{5w^3}{4}-\frac{8}{15}\right)\left(\frac{5w^3}{4}-\frac{1}{5}\right)$

$\left(3t-\frac{1}{3}\right)^2$