$1+2\left(sin\left(x\right)cos\left(x\right)\right)=\left(\left(sin\left(x\right)+cos\left(x\right)\right)\right)^2$

$\frac{d}{dx}\left(x+4\right)^4\left(4x-3\right)^3$

$\lim_{x\to\infty}\left(\frac{2x^3-5x^2+7}{8x^2+3x-1}\right)$

$\left(5m-2n\right)^5$

$\sin\left(4x\right)+2\sin\left(2x\right)$

$3y=3x^2+x$

$\frac{3x^4-7x-20}{x-2}$