How do you expand #(5m^3-1)^3#?
1 Answer
Sep 24, 2016
Explanation:
First step: expand the brackets. To expand the above question, we have to remember that when we have a power/exponent/a little number above the brackets i.e. "n" , it means we have to multiply the function/number/letter in front, "n" number of times.
Second step: simplify the equation by multiplying the first two brackets and leaving the third bracket, constant.
Note: when multiplying numbers that have powers, you must add the powers but multiply the numbers.
E.g.