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OpenStudy (anonymous):
Factor Completely 3x^2+21x+30 (And check this answer?) Factor Completely: 81x^2-25 81x^2-25=0 (9x-5)or (9x+5)
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jimthompson5910 (jim_thompson5910):
81x^2-25 factors to (9x-5)(9x+5) I think that's what you meant to say? If so, then you are correct.
jimthompson5910 (jim_thompson5910):
3x^2+21x+30 = 3(x^2 + 7x + 10) factor x^2 + 7x + 10 to get __________ (fill in the blank)
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