$\left(x\right)^5\left(x\right)^4\left(x\right)^4$

$\int\left(\ln\left(x^2+13x+40\right)\right)dx$

$4\sec\left(x\right)+4=-2\sec\left(x\right)-8$

$2a-2b+\left\{3x-3a-\left(a-b\right)\right\}-\left(a-b\right)$

$u+v+w-2u-6v+3w+u+5v-8w$

$\left(x-3\right)\left(x^{-6}-7\right)\left(7x-2x^6\right)\left(3-x\right)$

$1+1x^5$