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i have been working on...x^2 +5x +8 =4 for a test review and can't solve the problem. Any help would be great...thx

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1 Answer

x^2 + 5x + 8 = 4

subtract 4 from both sides:

x^2 + 5x + 4 = 0

Factoring the left side:

(x+4)(x+1) = 0

Setting each term (inside parentheses) to zero provides you the answer:

x = {-4,  -1}

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