SOLUTION: in need of help with this problem (factoring) x^2+16x+64

Question 209413: in need of help with this problem (factoring)
x^2+16x+64
Answer by RAY100(1637) (Show Source): You can put this solution on YOUR website!
x^2 +16x +64
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Sign of last term is (+), therefore factors are the same, and add (to 16)
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Sign of second term is (+), therefore factors are (+)
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factors of 1st term are just 1*1
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factors of last term can be; 1*64,2*32,4*16,8*8
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Since they must add to 16, lets try 8*8,,,(8+8=16)
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(x+8)(x+8)
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check by FOIL,,x^2 +8x+8x+64= x^2 +16x +64,,,,,ok
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