$x^2+128x^2+64$
$\left(-12\right)\left(-5\right)\left(1\right)$
$40,78+230,01$
$\frac{5x^3\:-\:11x^2\:-\:14x\:-\:16}{x\:-\:3}$
$36-121c^2-132c$
$3x+5x^2+x\cdot2x$
$y^2=289$
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