$5^{\frac{1}{2}}=\sqrt{5}$

$\left(x+3y-2z\right)^2$

$4z^2+8z+4=0$

$\frac{a^2}{b^2}-2a+b^2$

$\ln\left(\sqrt{7}+3\right)+\ln\left(\sqrt{7}-3\right)=\ln\left(16\right)$

$\cot\:\left(a+45\right)=\frac{\cos\:\left(a\right)-\sin\:\left(a\right)}{\cos\:\left(a\right)+\sin\:\left(a\right)}$

$x-10=-24$