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Anonymous
Assuming the missing operational signs are pluses, the answer is (x + 7)(7x + 1)
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7(x-5)^2
7x2 - 847 [First factor out a 7] 7(x2 - 121) [Now factor it totally] 7(x + 11)(x - 11) x = 11 and -11
(7x + 5)(x - 2)
7x2 + y
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