I need help explaining the meaning, please
My textbook has the answer different. 167-57X with 4 as the denominator
having trouble understanding
I don't understand why the sign changed at the end?
details
I need the answer in a interval
where is the divide button
how do I get from step 2 to step 3
simplifying 81^-1/2 is 1/9,why does it written as 3^-2 in step 3?
Why did you get rid of the N?
