Question 607001: Can the expression a^2-16a+28 be factored. And if so how do I do it?
Answer by ankor@dixie-net.com(22740)   (Show Source):
You can put this solution on YOUR website! Can the expression a^2-16a+28 be factored. And if so how do I do it?
:
Look at the third term, 28. What are the factors? 2,14 and 4,7, can be both positive or both negative
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Which of these pairs of factors add up to the coefficient of a, which is -16
-2 - 14 = -16, and we can see that it will be factors of:
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(a-2)(a-14); FOIL this to check it
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