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OpenStudy (anonymous):
Which number completes the perfect square trinomial? x^2 + 20x + _ A. 40 B. 100 C. 25 D. 80
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OpenStudy (***[isuru]***):
hi, \[(x + 10)^{2} = x ^{2} = 2x + 100\] hope this would help ya again!! lol XD
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