# How do you simplify (x^2-9)/(2x+1)?

= $\frac{\left(x + 3\right) \left(x - 3\right)}{2 x + 1}$
${A}^{2}$ - ${B}^{2}$ can be factored into $\left(A + B\right) \cdot \left(A - B\right)$
= $\frac{\left(x + 3\right) \left(x - 3\right)}{2 x + 1}$