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The solution is 2(x + 2).
We need to factor the following expression:
2x + 4
First off, notice that both terms are divisible by 2. This 2 is the common factor of the terms in the expression.
Divide both terms by 2
x + 2
Put parentheses around this expression
(x + 2)
Finally, put 2 in front of the parentheses
2(x + 2)