Answer:
72x + 144
Explanation:
distribute 18
18 x 4x = 72x
18 x 8 = 144
Hope This Helps!!
The 18 "distributes" through each of the parentheses,
multiplying by each of the terms inside.
So we have 18(4x) + 18(8) which simplifies to 72x + 144.
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