49 - x2 = -(x2 -49) = - (x-7)(x+7)
divide by x -7
Answer: -(x+7) = -x-7
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(8w + 7)(8w - 7)
7 squared = 49
Yes because if x2-14x+49 then it is (x-7)(x-7) when factored
27v2 - 147 = 3*(9v2 - 49) = 3*(3v - 7)*(3v + 7)
7 squared is 49 and 5 squared is 25. So the difference is 49-25=24