SOLUTION: how do i simplify (2a)5x4 i have no idea where to start and i would like to know how to solve it. Can you help me. thanks

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Question 643902: how do i simplify (2a)5x4
i have no idea where to start and i would like to know how to solve it.
Can you help me.
thanks
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

if you used x as multiplication sign, then you have

%282a%295%2A4=%282a%2920=40a
if you used x as a variable, then you have

%282a%295%2Ax%2A4=%282a%2920=40ax