SOLUTION: factorize by completing the square 2x^2 - 6x

SOLUTION: factorize by completing the square 2x^2 - 6x - 10 x^2 + 6x + 7 2x^2 + 6x + 3

Question 1129210: factorize by completing the square
2x^2 - 6x - 10
x^2 + 6x + 7
2x^2 + 6x + 3
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39621) (Show Source): You can put this solution on YOUR website!
2x^2 + 6x + 3
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------the square completed... changed form but not really a factorization;
one or two more steps if you want to factorize this.
Answer by ikleyn(52816) (Show Source): You can put this solution on YOUR website!
.

#2.

x^2 + 6x + 7 = (x^2 + 6x + 9) + 7 - 9 = (x^2 + 6x + 9) - 2 = = - 2 = - = ..

#3.

2x^2 + 6x + 3 = (3x^2 + 6x + 3) - x^2 = 3*(x^+ 2x + 1) - x^2 = = - = - = = = .

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Do #1 in the same way as I did #3.

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