SOLUTION: factor aČ + 12a + 36

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Question 281278: factor aČ + 12a + 36
Found 2 solutions by vleith, josmiceli:
Answer by vleith(2983) About Me  (Show Source):
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
I like to use completing the square
a%5E2+%2B+12a+%2B+36+=+0
Note that this is in the form
a%5E2+%2B+2%2A6a+%2B+6%5E2+=+0
The left side is a perfect square:
%28a+%2B+6%29%5E2+=+0
This equation has a double root which is
a+=+-6
check:
a%5E2+%2B+12a+%2B+36+=+0
%28-6%29%5E2+%2B+12%2A%28-6%29+%2B+36+=+0
36+-+12%2A6+%2B+36+=+0
72+-+72+=+0
0+=+0
OK