$x2+14x+48$

$x^2-8x+61$

$-\left(7-2\right)+\left(-\left(9-\left(14-5\right)+3\right)\right)+8$

$\frac{2b^2+13b+20}{2b^2+17b+30}$

$-2\left(-4\right)^3+\left(-4\right)^2\left(3\right)^2-3\left(3\right)$

$\frac{2}{\pi}\int_0^{\pi}\frac{5}{\pi}x\sin\left(4x\right)dx$

$-207+570-385+67-747$