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Question:
4(x + 5) + 4x + 8
Which of the following is equivalent to the expression above?
A
4(2x + 7)
explanation
The expression 4(x + 5) + 4x + 8 can be expanded to 4x + 20 + 4x + 8, which is equivalent to 8x + 28. Since 4 can be factored from each term in this expression, it can be rewritten as 4(2x + 7).
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