$\left(\frac{3}{4}x-3\right)^2$

$-2\cos\left(x\right)\sin\left(x\right)+\sqrt{3}\cos\left(x\right)-3\sin\left(x\right)=-3\sin\left(x\right)$

$\left(5m+8n-p\right)+\left(12m+n+4p\right)-\left(-5+8m-p\right)$

$\lim_{x\to\infty}\left(\frac{ln\left(8x+9\right)}{ln\left(10x+6\right)+3}\right)$

$z^2-z^6$

$10x+11y=-16$

$15x+25=-20$