$\sqrt[3]{a^3-3ab^2\left(a-b\right)-b^3+\left(a+b\right)}$
$5x+10x^{2}\quadx=-1$
$\tan\left(90-x\right).\cos\left(90-x\right)-\sin\left(90-x\right)$
$525\cdot7$
$\left(3xy^3-\frac{3}{8}x^3y^2\right)$
$-8.4+12.1$
$1\cdot22\cdot10$
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