algebra
posted by bob .
(128)(74)3power

I think you mean
(128)(74)^3
Just checking, because an extra bracket around like ((128)(74))^3 would give a different answer.
Brackets first.
Then powers or roots.
Then multiply or divide.
Then add or subtract.
First do the arithmetic inside the brackets:
(4)(3)^3
Now evaluate the power. What is 3^3? That's 3*3*3. Now multiply that snswer by 4, and you're done.