$\int_0^{0.5}\left(x^2\cdot\ln\left(x^3\right)\right)dx$

$10+a+3$

$\int_0^2\left(x^2\sqrt{4-y^2}+\frac{\sqrt{\left(4-y\right)^3}}{3}\right)dy$

$s^2\:t^4\:x\:s^7\:t^3$

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

$\left(x-5y-12\right)^2$

$\left(w^2+7y^5\right)\left(w^2-7y^5\right)$