$\left(\sqrt{5}+1\right)\left(\sqrt{5}-1\right)+\left(\sqrt{5}+1\right)\left(\sqrt{5}-1\right)$

$1-x<1$

$5x-4=11$

$y+y\cos x=\cos x\sin x$

$\int\left(\frac{4}{\sqrt[3]{x}}\right)-\left(5\frac{5}{\sqrt[4]{x}}\right)dx$

$\frac{\sin^2\left(x\right)-\cos^2\left(x\right)}{\sin^2\left(x\right)\left(1+\cot\left(x\right)\right)}=1-\cot\left(x\right)$

$\left(8y^2+4z\right)\left(8y^2-12z\right)$