Using the factoring method, solve for the roots of quadratic equation
4x^2=16
4x^2 = 16
x^2 = 4
x^2-4 = 0. The difference of 2 squares:
(x+2)(x-2) = 0
x+2 = 0
X = -2.
x-2 = 0
X = 2.
4x^2=16
x^2 = 4
x^2-4 = 0. The difference of 2 squares:
(x+2)(x-2) = 0
x+2 = 0
X = -2.
x-2 = 0
X = 2.