factor complety
2007-12-18 03:01:49 · 6 answers · asked by tracy n 1 in Science & Mathematics ➔ Mathematics
[05]
x^2-5x-14
=x^2+2x-7x-14
=x(x+2)-7(x+2)
=(x+2)(x-7)
2007-12-18 03:06:30 · answer #1 · answered by alpha 7 · 0⤊ 0⤋
first you want to look at the last number, 14. Find all the possible values that can be MULTIPLIED to get 14:
14 = 7*2
14 = 14*1
Now look at the middle number, -5. Is there any way to get -5 from 14 and 1, NOPE. Is there anyway to get -5 out of 7 and 2, YEP. -7 + 2 = -5, so you know that those must be the factors.
(x-7) * (x+2)
2007-12-18 03:03:22 · answer #2 · answered by KEYNARDO 5 · 1⤊ 0⤋
(x+2) (x-7)
2007-12-18 03:52:45 · answer #3 · answered by J 6 · 0⤊ 0⤋
(x-7)(x+2)
2007-12-18 03:06:02 · answer #4 · answered by Robert S 7 · 0⤊ 0⤋
(x+2)(x-7)
2007-12-18 03:04:01 · answer #5 · answered by manish_wolfyfox 5 · 0⤊ 0⤋
(x - 7)(x + 2)
2007-12-18 06:46:59 · answer #6 · answered by Como 7 · 3⤊ 0⤋