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x2 + 8x = -15

x2 + 8x + 15 = 0 since 15 = 5 x 3 and 5 + 3 = 8, then

(x + 5)(x + 3) = 0

x + 5 = 0 or x + 3 = 0

x = -5 or x = -3

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14y ago
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Q: Factor X2 plus 8x equals -15?
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