Answer:
36x
Explanation:
Distribute the 4 by multiplying everything in the parentheses by 4
4(9x)
4*9x
4 and 9 multiply, and the x can be tacked on the end
4*9=36
Tack on the x
Multiply x and 9
Multiply x and 1
The x just gets copied along.
The answer is x
x
9*x evaluates to 9x
Multiply 4 and 9x
Multiply 1 and x
4*(9*x) evaluates to 36x
The final answer is
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