$\left(abc-1\right)\left(ab+1\right)$

$\left(3x-4\right)\left(x^2+6x+3\right)$

$19.20+-5.01\ln\left(17\right)$

$\int\frac{5x^2+x+100}{x^3+25x}dx$

$\left(\frac{7}{n}i+2\right)$

$\left(-12\right)+\frac{\left(-9\right).6}{\left(-2\right)}$

$\int\frac{\sqrt{y^2-12}}{y}dy$