If that's + 4x2, the answer is 2x(x2 + 2x - 4)
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(2x - 1)(4x2 + 2x + 1)
Make a factor-tree and the look for the matches of their prime factorization... Using 6 and 8: 6......... 8 2x3.....4x2 .........2x2 so the prime factorization of 6 is 2x3 and 8 is 2x2x2 so the only match you have is two so the gcf of 6 and 8 is 2
The GCF is 4x2.
3(8x + 1)(8x - 1)
The GCF is 8x.