$m^6-b^6$

$x^2\:+\:bx\:+\:c\:=\:\left(x\:-\:h\right)^2$

$2\sin\left(2x\right).\cos y=\frac{1}{2}$

$\left(7b^2d^6\right)^2$

$\sin\left(\frac{\pi}{2}-x\right)\sec\left(\frac{\pi}{2}-x\right)$

$\sin\left(x-\pi\right)=\tan\left(x\right)$

$\left(-7\right)^5\cdot\left(-7\right)^{12}$