math help please with multiplying fractions?

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math help please with multiplying fractions?

2x^2-x-3 /3x^2+7x+4 multiplied by 3x^2-11x-20 /4x^2-9

2007-11-27 08:00:15 · 3 answers · asked by God Bless America!~ 4 in Education & Reference ➔ Homework Help

3 answers

2x^2-x-3/ 3x^2+7x+4 * 3x^2-11x-20/ 4x^2-9

(2x-3)(x+1) (3x+4)(x-5)
--------------------------------------------
(3x+4)(x+1) (2x-3)(2x+3)

2x-3 cancel out
3x+4 cancel out
x+1 cancel out

answer x+5/ 2x+3

2007-11-27 08:56:39 · answer #1 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋

wohooo!
i'm not sure ok..
it was quite confusing and im noooot really sure.
try this..
11x^2 + 5x/7

im so not sure:P

2007-11-27 08:08:51 · answer #2 · answered by piglet :) 2 · 0⤊ 0⤋

what do the arrows pointing up mean? If you tell me i'll be able to help!!

2007-11-27 08:21:56 · answer #3 · answered by livelaughlove™ <3(: 5 · 0⤊ 0⤋