$\frac{1}{2}\left(4\right)-2$

$\int5x\left(3+x\right)dx$

$\int_0^{0.5}\left(\pi\sin\left(10\pi x\right)\right)dx$

$\left(x^5-y\right)\left(x^5+y\right)$

$\lim_{x\to\frac{\pi}{4}}\left(9\left(tanx\right)^{tan\left(2x\right)}\right)$

$\int\left(\frac{1}{\left(4x^2+4x-3\right)^{\frac{3}{2}}}\right)dx$

$\int3\left(4x^2-9\right)^{-1}dx$