$3\left(x+ax\right)^2$
$196x^2b^2-25a^2$
$\cos\left(x\right)^2-\cos\left(x\right)^2$
$0-\left(-0+\left(-5\right)\right)$
$-36+45+78+23+-47+82$
$\sin^2+.36=1$
$\left(5x+2m\right)^3$
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