SOLUTION: Solve x2 + 4x – 12 = 0 by completing the square. Show your work for full credit.

Algebra ->  Coordinate-system -> SOLUTION: Solve x2 + 4x – 12 = 0 by completing the square. Show your work for full credit.       Log On


   

Question 682242: Solve x2 + 4x – 12 = 0 by completing the square. Show your work for full credit.
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
%281%2F2%29%284%29+=+2 and 2%5E2+=+4
...
x%5E2+%2B+4x+%2B+4+=+12+%2B+4
%28x%2B2%29%5E2+=+16
...
sqrt%28x%2B2%29%5E2 = +/- sqrt%2816%29
...
x+2 = +/- 4
x = -2 +/- 4
...
x = -2+4 = highlight_green%282%29
AND
x = -2-4 = highlight_green%28-6%29
………………………
Do you have more questions?
Email: HomeworkHelpers@ReadingBoosters.com
Delighted to help!
-Reading Boosters
Website: www.MyHomeworkAnswers.com