$\int\frac{-\left(2x^2+x+14\right)}{\left(x-4\right)\left(x^2+9\right)}dx$
$x^4-x^2+2x+2$
$x^2-5x+25=4$
$x^2-18x+81$
$\frac{1}{\left(x^2\cdot\sqrt{\left(9-x^2\right)}\right)}$
$\int_0^3\left(3e^{-3x}\right)dx$
$\left(4x+32\right)^2$
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