$-11x-6x$

$2\pi\frac{1}{3}$

$x=2b^{\frac{1}{2}}\left(\frac{1}{2}-b\right)^{\frac{1}{2}}+\left(\frac{1}{2}b\right)^{\frac{1}{3}};\:a=0;\:b=\frac{1}{4};\:$

$\lim_{x\to infinity}\left(\sqrt[x^2]{x^2+x+1}\right)$

$\left(\ln\sin x\right)\left(\cos x-1\right)$

$5^{2x}-12\left(5^x\right)+35=0$

$\int\left(2\cdot x\cdot\sqrt[3]{x^2}\right)$