Question
x^2=7x+12=0
Solve the following quadratic equation by completing the square. Simplify the solutions and rationalize denominators, if necessary.
Solve the following quadratic equation by completing the square. Simplify the solutions and rationalize denominators, if necessary.
Answers
oobleck
assuming a typo for
x^2+7x+12 = 0
x^2 + 7x + (7/2)^2 = -12 + (7/2)^2
(x + 7/2)^2 = 1/4
x + 7/2 = ± 1/2
x = -7/2 ± 1/2
x^2+7x+12 = 0
x^2 + 7x + (7/2)^2 = -12 + (7/2)^2
(x + 7/2)^2 = 1/4
x + 7/2 = ± 1/2
x = -7/2 ± 1/2