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Prove 3(x+1)(x+7)-(2x+5)² is never positive
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Prove 3(x+1)(x+7)-(2x+5)² is never positive

User NaveenBharadwaj
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Hope that's correct ✍︎︎
Prove 3(x+1)(x+7)-(2x+5)² is never positive-example-1
User Makboney
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