SOLUTION: solve: (x + 1)(x + 1) + (x + 2)(x + 2) = 5

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Question 566510: solve:
(x + 1)(x + 1) + (x + 2)(x + 2) = 5
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+%28x+%2B+1%29%28x+%2B+1%29+%2B+%28x+%2B+2%29%28x+%2B+2%29+=+5+
+x%5E2+%2B2x+%2B1+%2B+x%5E2+%2B4x+%2B4+=+5+
+2x%5E2+%2B6x+%2B5+=+5+
Subtract 5 from both sides
+2x%5E2+%2B+6x+=+0+
+x%2A%28+2x+%2B+6+%29+=+0+
+x+=+0+
+2x+%2B+6+=+0+
+2x+=+-6+
+x+=+-3+
-----------
check:
+%28x+%2B+1%29%28x+%2B+1%29+%2B+%28x+%2B+2%29%28x+%2B+2%29+=+5+
+%28-3+%2B+1%29%28-3+%2B+1%29+%2B+%28-3+%2B+2%29%28-3+%2B+2%29+=+5+
+-2%2A%28-2%29+%2B+%28-1%29%2A%28-1%29+=+5+
+4+%2B+1+=+5+
+5+=+5+
and
+%280+%2B+1%29%280+%2B+1%29+%2B+%280+%2B+2%29%280+%2B+2%29+=+5+
+1%2A1+%2B+2%2A2+=+5+
+1+%2B+4+=+5+
+5+=+5+
OK