$e^{3.952}$

$x^2-28x+784$

$7x^2+5x-3=0$

$\int\sqrt{1-\sin\left(x\right)}\cos\left(x\right)dx$

$-\left(a+b\right)+\left|-\left(a+b\right)-\left(-2a+3b\right)+\left(-b+a-b\right)\right|$

$cot\left(x-\frac{\pi}{2}\right)=1$

$\frac{\sqrt{x-6}\sqrt{x+6}}{\left(x-36\right)\left(x+36\right)}$