Answer:
9-4+(5x3)
Step-by-step explanation:
9-4+15
24-4
20
-5 is the answer ...............
When you expand the binomial, you isolate each of the parts.
So, (x-y)^4 would turn into...
x^4 - y^4
The powers stay the same because (outside the parenthesis) you multiply them with whatever is inside the parenthesis. In this case, would be 1. All variables and numbers without a listed power have a power of one. Multiply 4*1 to get 4.
170 divided by 80 is 2.125, so 80 goes in 170, 2.125 times
