How do you evaluate [(8+5) (6-2) ^2] - (4*17div2)?

1 Answer
Jun 10, 2015

Actually the square brackets in the first part aren't neccessary.
We first clear the brackets:

Explanation:

=(13*4^2)-(4*17:2)
Then the powers:
=(13*16)-(4*17:2)
Then the multiplications and divisions (two groups!):
=208-34
Finally the adding and subtracting:
=174

Note that all the brackets I put in the explanation are superfluous, they were just put there for clarity (what belongs together?).