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

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Answer 1 · 2018-05-28T21:18:53

= $((x+3)(x-3))/(2x+1)$

Only the numerator can be simplified because it is a difference of two perfect squares according to the following rule:

$A^2$ - $B^2$ can be factored into $(A+B) *(A-B)$

= $((x+3)(x-3))/(2x+1)$

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