$-120.35:\left(-140\right)$
$\frac{\tan\left(x\right)}{\cos\left(x\right)}+\tan\left(x\right)^2=1$
$950\:x\:6$
$x^2-\frac{4x}{3}+\frac{4}{9}$
$\left(m\right)+\left(3\right)^2$
$\sin2x\cos x$
$\left(-5x^4+2x^3-6x^2+x-1\right).\:\left(2x^2-3\right)$
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