SOLUTION: Factor completely: x^2 - 36a^2 + 4x + 4 I'm completely lost especially because there are two variables. In addition, when I see a four term polynomial, I think of solving by gro

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Factor completely: x^2 - 36a^2 + 4x + 4 I'm completely lost especially because there are two variables. In addition, when I see a four term polynomial, I think of solving by gro      Log On


   



Question 777504: Factor completely: x^2 - 36a^2 + 4x + 4
I'm completely lost especially because there are two variables. In addition, when I see a four term polynomial, I think of solving by grouping. But in this case you cannot. Any help would be greatly appreciated.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Factor completely: x^2 - 36a^2 + 4x + 4
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Rearrange::
x^2+4x+4 - 36a^2
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Factor the quadratic::
(x+2)^2 - 36a^2
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Factor the "difference of squares":::
(x+2-6a)(x+2+6a)
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Cheers,
Stan H.
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