(2a^2x)^2
When a = 2 and x = 3
The book states the answer as 576, but I can't see how that figure derived.
Thank you!
Hello, MathClown!
Exactly where is your difficulty?
$\displaystyle \text{Evaluate: }\:(2a^2x)^2 \;\text{ when }a = 2\text{ and }x = 3.$
We have: .$\displaystyle \left(2\cdot 2^2\cdot 3\right)^2 \;=\;(2\cdot4\cdot3)^2 \;=\;(24)^2 \;=\;576$
Always remember the order of operations: PEDMAS ...Parenthesis, Exponents, Multiplication/Division, and last of all Addition/Subtraction.
So in the equation (2a^2x)^2 ....we look to the parenthesis 1st ...(2*2^2*3)....
exponents come next -->(2*4*3)=24 ,
then 24^2=576.