\[4x-2\]
1
Find the Greatest Common Factor (GCF).
GCF = 22

2
Factor out the GCF. (Write the GCF first. Then, in parentheses, divide each term by the GCF.)
2(4x2−22)2(\frac{4x}{2}-\frac{2}{2})

3
Simplify each term in parentheses.
2(2x−1)2(2x-1)

Done
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