SOLUTION: Dear sir or mam: I am working on factoring trinomials completely 16x^2-104x+169

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Question 207733: Dear sir or mam:
I am working on factoring trinomials completely
16x^2-104x+169

Answer by RAY100(1637) About Me  (Show Source):
You can put this solution on YOUR website!
16x^2 -104x +169
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factors of 16:,,1-16,,2-8,,4-4,,,,,factors of 169:,,1-169,,,,13-13
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last term is +,,,,therefore sum of inside,outside terms = 104,,,
and,,,as middle term is -,,,both signs are negative
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(4x-13)(4x-13)
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check using FOIL,
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4x^2 -52x -52x +169,, 4x^2 -104x +169,,,,ok
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