x^2-2x-15 Factor?

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2007-07-16 03:10:23 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

x² - 2x - 15 = 0

x² - 5x + 3x - 15 = 0

x(x - 5) + 3(x - 5) = 0

(x + 3)(x - 5) = 0

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2007-07-16 03:45:05 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋

Hey there!

Here's the answer.

x^2-2x-15 -->
x^2-5x+3x-15 -->
x(x-5)+3(x-5) -->
(x+3)(x-5)

So the answer is (x+3)(x-5).

Hope it helps!

2007-07-16 03:26:44 · answer #2 · answered by ? 6 · 0⤊ 0⤋

(x-5)(x+3)

2007-07-16 03:13:33 · answer #3 · answered by gebobs 6 · 0⤊ 0⤋

10x-y=7y*x(3)

2007-07-16 03:18:59 · answer #4 · answered by Anonymous · 0⤊ 0⤋