$\int\left(21x^2\right)dx$
$25 = 7 + v$
$72\cdot40$
$\frac{8c^{12}}{4c^{14}}$
$122+z+262+f$
$\frac{x+1}{3}-2x\ge\frac{1-5x\:\:}{4}$
$4x^2+16$
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