Question

Please Help!

Could someone tell me what the answer is, to this question? Thanks!

"Multiply: (x-4)/(2x-18) x (x^2-7x-18)/(x^2-16)"

Answer 1

do some factorising

\[\frac{x -4}{2(x-9)} \times \frac{(x - 9)(x +2)}{(x+4)(x-4)}\]

eliminating common factors leaves (x -9) and (x - 4)

\[\frac{(x +2)}{2(x+4)}\]

Answer 2

Aha! Just what I thought! Thanks so much , campbell_st! I just wanted to check, to see if my math curriculum was incorrect - I tried this problem twice, and I got the same answer you did.