x2 23x equals 0
If: x2-4 = 0 Then: x = 2
x2 + 49 = 0 ∴ x2 = -49 ∴ x = 7i
x2 + 7x = 2x2 + 6 x2 - 2x2 + 7x = 6 -x2 +7x - 6 = 0 or alternatively x2 - 7x + 6 = 0
144X = X2 144X - X2 = 0 (144 - X)X = 0 X = 0 or X = 144
x2 23x equals 0
x: x2 - 81 = 0
If: x2-4 = 0 Then: x = 2
x2 + 49 = 0 ∴ x2 = -49 ∴ x = 7i
x2 + 7x = 2x2 + 6 x2 - 2x2 + 7x = 6 -x2 +7x - 6 = 0 or alternatively x2 - 7x + 6 = 0
144X = X2 144X - X2 = 0 (144 - X)X = 0 X = 0 or X = 144
x2-10 = 0 x2 = 10 x = the square root of 10
x = 0
The domain of y = x2 is [0,+infinity]
x2-8x=0 ( add 8x to both sides) x2 =8x (divide by x) x=8 ( x2divided by x equals x)
x2 - 3x + 2 = 0
x2 = -11x - 10 x2 + 11x + 10 = 0 (x + 1)(x + 10) = 0