$\int e^x\sqrt{e^x+2}dx$
$\int_0^4\pi\left(x^2+1\right)^2dx$
$7y-8\cdot7y-8$
$2+2\:x\:\left(6\right)^2$
$\sin^2a\tan a+\cos^2a\tan a+2\sin a\cos a$
$\int\left(e^{5x}\cdot20\right)$
$3.50+1.50+2.75$
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