$$\lim_{x\to\frac{1}{2}}\left(4x+1\right)\left(6x-1\right)$$

$$\left(-27+h\right)^2$$

$$\int_0^{\infty}\sin\left(a\right)dx$$

$$2-w>5$$

$$\frac { x ^ { 2 } - 16 } { x ^ { 2 } + 8 x + 16 }$$

$$\left(9.3-6.5\right)$$

$$2y^{-3}\cdot3x^2y^{-1}$$