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Talon Hicks
Mathematics
10 May, 23:08
5x 2 -320 factored completely?
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Harley Fuller
10 May, 23:23
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First factor out the 5 so you have 5 (x2-64). Since (a+b) (a-b) = (a^2-b^2)
(x^2-64) = (x-8) (x+8). So completely factored is 5 (x-8) (x+8).
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Jonathon Stephens
10 May, 23:25
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First take out the GCF (5)
5 (x^2-64)
It's a perfect square so we can go further
5 (x+8) (x-8)
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