Factor x^2 + 5x + 6.
A) (x - 2)(x - 3)
B) (x + 2)(x + 3)
C) (x - 6)(x - 1)
D) (x + 6)(x + 1)
2007-05-29 07:45:56 · 8 answers · asked by Anonymous in Education & Reference ➔ Homework Help
x² + 5x + 6
(x + 3)(x + 2)
B)
2007-05-29 07:49:31 · answer #1 · answered by Robert L 7 · 0⤊ 0⤋
The answer is B. x * x = x^2, 2x + 3x = 5x and 2 x 3 = 6.
2007-05-29 14:49:24 · answer #2 · answered by Anonymous · 0⤊ 0⤋
B) (x + 2)(x + 3)
2007-05-29 14:50:18 · answer #3 · answered by Anonymous · 0⤊ 0⤋
x^2 + 5x + 6.
x^2 + 2x +3x + 6.
(x + 2)(x + 3).
2007-05-29 15:03:32 · answer #4 · answered by mathur 3 · 0⤊ 0⤋
The answer is B.
All you have to remember is "FOIL" which stands for "First, Outer, Inner, Last."
Using (x+2)(x+3),
FIRST: X multiplied by X = X^2
OUTER: X multiplied by +3 = +3X
INNER: +2 multiplied by X = +2X
LAST: +2 multiplied by +3 = +6
X^2 + 3X + 2X + 6
X^2 + 5X + 6
2007-05-29 14:55:48 · answer #5 · answered by Anonymous · 3⤊ 0⤋
Well, it can't be A because -2x + -3x = -5x
It can't be C because -6x + -1x = -7x
It can't be D because 6x + 1x = 7x
The only one that fits is B
x *x = x2
3x + 2x = 5x
3*2=6
2007-05-29 14:54:21 · answer #6 · answered by Amy F 2 · 0⤊ 0⤋
You really need to stop posting all your homework questions on here. I know this isn't your first in the last 10 minutes. Use the answers people supply you to figure out WHY. You will need these skills later in life.
2007-05-29 14:54:02 · answer #7 · answered by kris11989 2 · 2⤊ 0⤋
B
2007-05-29 15:06:41 · answer #8 · answered by Anonymous · 0⤊ 0⤋