$\frac{7^5x\:7^3}{7^2}$
$\int e^x\sqrt{7+e^x}dx$
$4b^2+8b+3$
$\frac{x^2-5x+6}{x^2-6x+8}$
$2-7x\le16$
$\left(-2\right)^2\cdot\left(-2\right)^3\cdot\left(-2\right)^4$
$\left(-4\right)^2\cdot\left(-4\right)^5$
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