SOLUTION: can you show me how to factor the following:9x^2+42x+49=

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Question 436980: can you show me how to factor the following:9x^2+42x+49=
Found 2 solutions by Gogonati, ewatrrr:
Answer by Gogonati(855) About Me  (Show Source):
You can put this solution on YOUR website!
Rewrite the expression:%283x%29%5E2%2B2%2A3x%2A7+%2B7%5E2, remember the formula:
a%5E2%2B2ab%2Bb%5E2=%28a%2Bb%29%5E2. In our exercise a=3x and b=7, therefore
%283x%29%5E2%2B2%2A3x%2A7%2B7%5E2=%283x%2B7%29%5E2.
Done.

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

Factoring

9x^2+42x+49 = (3x+7)(3x+7)

  Note:SUM of the outside terms(21x) and the inside terms(21x) = 42x

F	First terms

O	Outside terms

I	Inside terms

L	Last terms