$x^2+3^y=5$

$1+1+1+1+1$

$\left(\frac{3}{5}x^{2b+1}y^b-0.2x^{b-2}y^3\right)^3$

$\int\frac{6}{x\sqrt{49+x^2}}dx$

$x^{2\:}-11x\:+\:30\frac{1}{4}$

$\int_0^{\frac{\pi}{6}}\left(2\pi cos\left(2x\right)\sqrt{1+4sin^2\left(2x\right)}\right)dx$

$-4+\left(-2\right)-\left(+3\right)-\left(-5\right)-9+8-\left(-7\right)+3$