# 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. # 5m^3 * 5m^3 = 5 * 5 * m^(3 +3) = 25m^6 #**