$\int t^5\left(t^2+5\right)^{-\frac{1}{2}}dt$

$\left(2x^2-5x+2\right)\left(2x+1\right)$

$\int_a^b\left(\frac{1}{\left(b-x\right)^m}\right)dx$

$\left(4m^2n^5-7a^6\right)^2$

$5.\left[-16:\left(21-13\right)-3\left(-7+15\right)\right]$

$\sqrt[4]{25}\cdot\sqrt{a}^2$

$25g^2-40g+16$