$\int\frac{7x-5}{2x^2-5x-3}dx$

$\left(21x^3+5+6x^5+12x+14x^4+20x^2\right):\left(2x^2+2x+3\right)$

$\int_1^{\infty}\frac{\sqrt{3}\left(x^2\right)}{x^3+1}-\frac{1}{3x+1}dx$

$f\left(x\right)=\frac{1}{\sqrt{1-n^6}}$

$36d^2-48d+16$

$-4+3\left(3-5\right)$

$\frac{8}{1-cos\:x}+\frac{8}{1+cos\:x}=16\:csc^2x$