$16x^2x+40x+25$

$\lim_{x\to\infty}\left(\left(2^x+3^x\right)^{\frac{1}{x}}\right)$

$\left(2ab^4+5m^5\right)^2$

$\frac{\left(10+x^6\right)dy}{dx}=\frac{x^5}{y}$

$\left(3a^2+2ax\right)^2$

$\sin^3a\cos b+\sin^2a$

$\lim_{x\to\infty}\left(\frac{x^4-2x^2+x}{\sqrt{x^8+8}}\right)$