$\int\frac{y+4}{y^2+4}dy$
$2^0+3^0-2^1$
$-9x\left(5-2x\right)$
$\left(x^2\right)^3+\left(y^2\right)^3$
$x^2+1x+49$
$\int\left(7x^2+4\right)e^{2x}dx$
$-19x\:+10\:-\:2x\:-\:10$
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