What the answer to this problom? x2-x-20?

1 ⤊

2007-10-30 15:02:20 · 5 answers · asked by callee1968 2 in Science & Mathematics ➔ Mathematics

Factor:
x² -x -20

(x - 5)(x + 4)

2007-10-30 15:05:04 · answer #1 · answered by Puzzling 7 · 1⤊ 0⤋

Let's try
x2-x+20=0
(x+4)(x-5)=0
x=-4 and x=5

2007-10-30 22:28:47 · answer #2 · answered by Jenn 2 · 0⤊ 0⤋

(x-5)(x+4)

2007-10-30 22:06:48 · answer #3 · answered by me 2 · 0⤊ 0⤋

Are you factoring? solving for x when the you set this equal to zero?
If factoring: (x - 5)(x + 4)
If this equals zero, then x = 5 or -4

2007-10-30 22:06:19 · answer #4 · answered by duffy 4 · 0⤊ 0⤋

(x-5)(x+4)
x=5 andx=-4

2007-10-30 22:06:45 · answer #5 · answered by john 4 · 0⤊ 0⤋