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Anonymous
7(x2 + 7)
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7x2 plus 7x5 = 49
7x2 + 68xy - 20y2
I suppose you mean, how do you factor it. 7x2 - 9x - 10 = (7x + 5)(x - 2).
(7x + 6)(x - 2)
(7x + 4)(x - 1)