$\left(3x+2\right)^2+\left(5-3x\right)\left(5+3x\right)-29$
$\sqrt[2]{-\frac{4}{7}}$
$\left(\sqrt{1+a^2}-\sqrt{1-a^2}\right)^2$
$2x\left(4x+15\right)$
$\int sen\frac{x}{4}\cdot\cos\left(4x\right)dx$
$\sin\left(x\right)+2\cos\left(2y\right)$
$-9x+2\ge11$
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