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5 votes
Help me guys, please

Help me guys, please-example-1
User Sethu
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1 Answer

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c^2 + 3c - 40 = 0

consider the factors of -40: ±40, ±1, ±8, ±5...those last two could work, if you pair them right. try:

(c + 8)(c - 5)

8 - 5 = 3 and 8*(-5) = -40 so there u go
User Matt Wagner
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