$38-\left(-5\right)$

$m^2=196$

$\:\left(\:\sqrt{5}\sqrt{5}+\:\sqrt{3}\sqrt{3}\:\right)\left(\:\sqrt{5}\sqrt{5}-\sqrt{3}\sqrt{3}\:\right)\:$

$\int_0^2\left(\frac{x^2}{x}\right)dx$

$\frac{5x^2}{3}-\frac{2xy}{5}+\frac{y}{3x}$

$\left(6xy^3+\:x^2y\right)^3\:$

$\int\frac{4}{\left(x+1\right)\left(x^2+9\right)}dx$