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n^2 %2B 20*n %2B 75 |
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Answer» give me answer x^2 + 20x + 75 = 0x^2 + 15x + 5x + 75 = 0x(x + 15) + 5(x + 15) = 0(x + 5)(x + 15) = 0x = - 5, - 15 |
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