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## anonymous one year ago Which of the following represents the factored form of f(x) = x3 − 64x? f(x) = x(x + 8)(x − 8) f(x) = (x − 8)(x + 8) f(x) = x(x − 8)2 f(x) = x(x2 − 8)

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1. Nnesha

find the GCF 1st wha is the common factor ?

2. Nnesha

$\huge\rm x^3-64x$ what is common in thes both terms ?

3. anonymous

Well The factors of 64 are: 1, 2, 4, 8, 16, 32, 64

4. Nnesha

both terms 64 isn't common in first term |dw:1439586935196:dw|

5. Nnesha

there isn't any number common what about the variables ?

6. anonymous

Yes the variables they are both X making them common I guess

7. Nnesha

yes smallest degree variable will be the common factor |dw:1439587179653:dw| take out the common factor what ill you have left in the parentheses ?

8. Nnesha

will*

9. anonymous

Ok

10. Nnesha

in other words divide both terms by common factor $\huge\rm x^3-64x$ $\huge\rm \frac{ x^3 }{ x }-\frac{ 64x }{ x } = x(?? - ??)$

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