$-11+\left(14\right)+\left(-49\right)+\left(-17\right)+\left(-45\right)$
$\left(1+2j\right)\left(2+7j\right)$
$\int\frac{12}{x^2\sqrt{x^2+25}}dx$
$-2\left(3\right)+2$
$tan^2x-2tanx-3=0$
$\left(3x^3+2\right)^2$
$\frac{d}{dx}\left(4y^5-5y^4+3y^2-7y=9x^3-7x+9\right)$
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