$-3x^2+7x+6=0$
$\lim\:_{x\to\:0}\frac{\left(4x^2+2x+1\right)}{\sin\left(x\right)}$
$f\left(x\right)=6x^4-x^3+3x^2-5-10$
$\left(4x^{\frac{3}{4}}+2\right)\left(4x^{\frac{3}{4}}-2\right)$
$\left(-\:3\right)^4$
$e^{2x}y'=\frac{e^x-1}{y}$
$3ab+9a$
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