By bmktown, Updated
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How do I factor x^2 + 6x +8?
You just have to find what two numbers multiple to 8 and add up to 6.
You just plug it in. You already know x^2 is x times x, so just plug it in the parenthesis.
I know that 4 times 2 is 8 and 4 plus 2 is 6. What do I do now?
Yes, and you can always check your answer by using FOIL!
So my answer is (x+4)(x+2)?
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