Okay, I need help factoring trinomials. How would you factor x^2 - 11xy -60y^2? It confuses me, I have others like that too...I did some, ones like x^2+4x-32, but these are harder and I'm confused. =(
2007-05-14 09:04:11 · 3 answers · asked by Anonymous in Education & Reference ➔ Homework Help
These are the same as your easier ones. Think of the first (x^2) in normal sense, the second (xy) as simply x, and the third (y^2) as 1. Just take away the Ys for now.
Now you have x^2-11x-60. Can you solve that?
It's (x-15)(x+4).
Now, all you have to do is put the Ys back in.
(x-15y)(x+4y).
Hope that helped.
2007-05-14 09:15:19 · answer #1 · answered by syphongalaxy 2 · 0⤊ 0⤋
(x-15y)(x+4y) Need the coefficients in front of the y to multiply to -60 and sum to -11 which means one is posotive and one is negative.
2007-05-14 16:17:24 · answer #2 · answered by lilmisssunshine 2 · 0⤊ 0⤋
x^2 - 11xy -60y^2
(x - 15y)(x + 4y)
.
2007-05-14 16:16:36 · answer #3 · answered by Robert L 7 · 0⤊ 0⤋