$\cos x^2=2$
$\frac{-\frac{2}{3}}{e^{3x}}$
$-3x^2+202=10$
$\frac{x^3-6x-10}{x+3}$
$sin\:x\:=\:-\frac{12}{13}$
$8+3x-\left(-5x\right)+11$
$14x\:+\:10=9x+20$
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