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

$-27.2+-18.7+-10.3+0+7+12.7+\:14.8+12.2+6.6+-1.8+-14.3+-24.6$

$-3ax^2+12axy-12ay^2$

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

$5\:\left(6g\:-\:7\right)\:+\:2\:\left(6\:-\:3g\right)$

$\left(x+1\right).\left(-3\right)>21$

$-x>5$