SOLUTION: Help me solve (x+2)^2=16

Algebra ->  Radicals -> SOLUTION: Help me solve (x+2)^2=16      Log On


   

Question 615572: Help me solve (x+2)^2=16
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+%28x%2B2%29%5E2=16+
Take the square root of both sides
+x+%2B+2+=+4+
+x+=+2+
and, taking the negative square root
+x+%2B+2+=+-4+
+x+=+-6+
---------
Check:
+%282%2B2%29%5E2=16+
+4%5E2+=+16+
+16+=+16+
and
+%28-6%2B2%29%5E2=16+
+%28-4%29%5E2+=+16+
+16+=+16+
OK