SOLUTION: Give exact and approximate solutions to three decimal places. {{{x^2+12x+36=64}}} What are the exact solutions? x=____ (Type an exact answer, using radicals as needed. Rational

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Give exact and approximate solutions to three decimal places. {{{x^2+12x+36=64}}} What are the exact solutions? x=____ (Type an exact answer, using radicals as needed. Rational      Log On


   



Question 395277: Give exact and approximate solutions to three decimal places.
x%5E2%2B12x%2B36=64
What are the exact solutions?
x=____
(Type an exact answer, using radicals as needed. Rationalize all denominators. Express complex numbers in terms of i. Use a comma to separate answers as needed.)
**There are no approximate solutions since the solutions are integers.

Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Solve:
x%5E2%2B12x%2B36+=+64 Subtract 64.
x%5E2%2B12x-28+=+0 Factor.
%28x-2%29%28x%2B14%29+=+0 Apply zero product rule.
x-2+=+0 or x%2B14+=+0 so...
x%5B1%5D+=+2 or x%5B2%5D+=+-14