$x\left(y+5\right)+3y+15$
$\frac{3}{4}x+4=22$
$28x^3+35x^2$
$\left(8\right).\left(5\right).\left(2\right).\left(-9\right).\left(-4\right)$
$\left(3+b\right)^4$
$-\left(-14-\left(-20\right)\right)-\left(9-\left(-14\right)\right)$
$e^{cos\:y}=\cos\left(x\right)$
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