2X^2 - 32 = 0
2X^2 = 32
X^2 = 16
X = +/- 4
yes, (X-4) would be a factor, as......
x-4 = 0
X = 4
or
2x2 - 32 = 2(x2 - 16) = 2(x - 4)(x + 4)
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The GCF of 2x and 12 is 2.
4
Take out the common factor, 3: 3x + 6 = 3(x + 2).
(x+2)(x2+2x+4)
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