$\left(2-1^2\right)\left(2^5+2^3+2^2+1\right)$

$\int2x\cdot\sqrt[3]{x+4}dx$

$\frac{d}{dx}-4y^2-9=0$

$19a-6b+b-6a$

$\left(\frac{x+3}{4}\right)\left(\frac{x-5}{-4}\right)\left(\frac{x-7}{-6}\right)$

$\int\frac{70}{x\left(x+10\right)\left(x^2+4x+24.542\right)}dx$

$a^{\:5}.a^2.b^3$