$\frac { 6 x ^ { 3 } + 19 x ^ { 2 } + 16 x + 22 } { 3 x + 2 }$

$\frac{a}{2}+\frac{a}{3}+\frac{a}{4}$

$m^{\frac{2}{3}}n^{\frac{1}{3}}\left[m^{\frac{3}{4}}n^{\frac{1}{2}}\left(m^{\frac{1}{2}}n^{\frac{1}{3}}\right)^2m^{\frac{5}{6}}n^{\frac{2}{3}}\right]^2$

$7x-11<2x+160$

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

$4a^3b^2+5a^2b$

$\int_{6+k}^{15+k}\left(x\right)dx$