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20 October, 17:13

The equation 4x^2+8x+15=0

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  1. 20 October, 19:38
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    Step-by-step explanation:

    hello:

    4 (x²+2x) + 15=0

    4 (x²+2x+1-1) + 15=0

    4 (x+1) ² - 4 + 15 = 0

    (x+1) ² = - 11/4 no solutions in R because : (x+1) ² ≥ 0
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