Question

Multiply and simplify: ((x^2 -9)/(x^2 +6x +8)) / ((x+3)/(x+4))

Answer 1

@DavidUsa

Answer 2

y = [x^2 - 9)(x^2 + 6x + 8)]/[(x + 3)( x+ 4)]
The expression (x^2 - 9) can be transformed to: (x - 3)(x + 3)
The quadratic term can be factored as: (x + 2 )(x + 4)
Finally after simplification:
y = (x - 3)(x + 2)