$20x^4-72x^2+36$
$2x^2-10x+2y^2+6y-15=0$
$\left(7-2v\right)^2$
$\left(-675\right)+\left(-148\right)+\left(-216\right)$
$\left(3x^2+2x-1\right)+\left(5x^2-x+4\right)$
$-255-65$
$\cot^2\left(10\right).\tan^2\left(10\right)+1=2$
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