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(8w + 7)(8w - 7)
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49 - x2 = -(x2 -49) = - (x-7)(x+7) divide by x -7 Answer: -(x+7) = -x-7
7 x 7 = 49
It is: (x-7)(x+7) when factored
7 squared = 49
Yes because if x2-14x+49 then it is (x-7)(x-7) when factored