x2 - 14x = -49 ∴ x2 - 14x + 49 = 0 ∴ (x - 7)2 = 0 ∴ x = 7
x2+14x+49 = (x+7)(x+7) when factored
51.07142857142857
x2+14x+40 = (x+4)(x+10) when factored
x2-14x+49 (x-7)2 or (x-7)(x-7)
x2 - 14x + 49(x - 7) (x - 7)
(x - 7)(x - 7)
x2 - 14x = -49 ∴ x2 - 14x + 49 = 0 ∴ (x - 7)2 = 0 ∴ x = 7
(x2 + 14x + 49) = (x + 7)2
x2 - 14x + 49 = (x - 7)2
-x2+14x=49
x2+14x+49 = (x+7)(x+7) when factored
49 x2 + 14x = -7 x2 + 14x + 49 = 42 (x + 7)2 = 42 x = -7 ± √42
x2 - 14x + 45 = (x - 5)(x - 9).
x2+14x+40 = (x+4)(x+10) when factored
51.07142857142857
x2+14x+40 = (x+4)(x+10) when factored