$tan\left(x\right)sin2\left(x\right)=2-2cos^2\left(x\right)$

$\:\left(\frac{1}{4}m-5\right)\left(\frac{1}{4}m+5\right)$

$2a^3-2$

$x^3+9x^2+26x+24$

$\left(x^2+2y^2\right).dx=xy.dy$

$\left(3x\infty4\:+\:8\right)^2$

$\int\frac{\left(2x-1\right)}{\left(x^2+4\right)\left(x+1\right)}dx$