x2+14x+49 = (x+7)(x+7) when factored
51.07142857142857
x=7
4x2 + 28x + 49 = 4x2 + 14x + 14x + 49 = 2x(2x + 7) + 7(2x + 7) = (2x + 7)(2x + 7) or (2x + 7)2
Yes because if x2-14x+49 then it is (x-7)(x-7) when factored
-x2+14x=49
(x2 + 14x + 49) = (x + 7)2
x2 - 14x + 49(x - 7) (x - 7)
x2+14x+49 = (x+7)(x+7) when factored
x2 - 14x + 49 = (x - 7)2
51.07142857142857
x=7
4x2 + 28x + 49 = 4x2 + 14x + 14x + 49 = 2x(2x + 7) + 7(2x + 7) = (2x + 7)(2x + 7) or (2x + 7)2
49 x2 + 14x = -7 x2 + 14x + 49 = 42 (x + 7)2 = 42 x = -7 ± √42
Yes because if x2-14x+49 then it is (x-7)(x-7) when factored
The only restriction in this case is that the denominator may not be zero. Solve the equation:100x = 0 That will tell you which numbers may NOT be included ni the domain.
(x-7) (x-7)