$x+2y-42=-4$
$15x^4-15x^3+20x^2$
$2x^2+28x+6$
$\int_0^{\infty}\left(\frac{x^3}{\left(a^2+x^2\right)^{\frac{5}{2}}}\right)dx$
$x^2-6x+12>3$
$-8\left(x-1\right)=7x+23$
$-406+\frac{112\cdot117\left(29-201\right)}{\left(-201+29\right)\cdot117}-406$
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