Factor the GCF from each term in the expression?

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Factor the GCF from each term in the expression?

I did decent on my other portion but im not 100% sure on the last one.

1) 6x^6 - 12x^4 i got 6x^4 ?

2) 27x^3 - 9x^2 + 15x i got 3x ?

3) 3(x+7) - x(x+7) im not sure on this one

2007-12-20 02:31:06 · 2 answers · asked by don 2 in Science & Mathematics ➔ Mathematics

2 answers

1).
6x^6 - 12x^4 = 6x^4(x^2 - 2)
So 6x^4 is the GCF

2).
27x^3 - 9x^2 + 15x = 3x(9x^2 -3x + 5)
So 3x is the GCF

3). 3(x + 7) - x(x + 7) = (x + 7)(3 - x)
So (x+7) is the GCF.

2007-12-20 02:38:36 · answer #1 · answered by lenpol7 7 · 0⤊ 0⤋

two dozen bananas.

2007-12-20 10:33:59 · answer #2 · answered by clavdivs 4 · 0⤊ 1⤋