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f2 – 79 = -15 How do i factor this

Guest Mar 30, 2017
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 #1
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f2 - 79 = -15

 

Add 15 to both sides.

f2 - 64 = 0

 

This is now a "perfect square binomial," and you can write it like this:

(f - 8)(f + 8) = 0         :)

hectictar  Mar 30, 2017

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