$7\cdot6^2+4$

$\lim_{x\to0}\left(\frac{\left(x-1\right)^2}{-\left(\ln\left(x\right)\cdot x\right)}\right)$

$\int\left(\frac{4}{\left(4x^2+9\right)}\right)dx$

$\left(x+h\right)^{-\frac{1}{2}}$

$3\left(a\right)\:\left(4\right)^2$

$2\left(\frac{x+1}{3}\right)+3\left(\frac{x+3}{4}\right)\ge\frac{3x+5}{2}$

$4x^2+11x-2$