$9b^2+6b+1$
$\frac{10\left(cos\right)^2x-sinx-7}{2sinx-1}=-3-5sinx$
$a-6-2a+7$
$\left(-7\right)^3\left(-7\right)^{-1}\left(-7\right)^3$
$-14+17.6$
$\frac{\sin\left(3x\right)}{3}=3$
$-3a^2b^2-10^2b^2+13a^2b^2$
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