# Find the solution using factoring3(x+2)²=2x²+3x-8

2
i've been solve it but annec was the first to sent you the answer
a question can be answered twice :) you can still post yours if there's only one answer
my solution is DPMAS

2014-06-26T22:34:54+08:00

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3(x+2)² = 2x² +3x -8

3(x
²+4x+4) = 2x² +3x -8

3x² +12x +12 -2x² -3x +8 = 0

x² +9x +20 = 0

(x+4) (x+5) = 0

x=-4  ;  x=-5
2014-06-26T23:42:23+08:00

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.

3(x + 2)^2 =  2x^2 + 3x - 8
3(x^2 + 4x + 4) = 2x^2 + 3x - 8
3x^2 + 12x + 12 = 2x^2 + 3x - 8
3x^2 - 2x^2 + 12x - 3x + 12 + 8 = 0
x^2 + 9x + 20 = 0
(x + 5)(x + 4) = 0

x + 5 = 0
x = -5

x + 4 = 0
x = -4

x = {-5,-4}

Hope it helps kahit na may nauna na sa akin na sumagot. :)