# Can u guys give me some steps in cubing a binomial ?

2
by anicolegjazzy

2015-02-02T21:03:23+08:00
For cubing a binomial we need to know the formulas for the sum of cubes and the difference of cubes.
ahahaha okayy thanks tho
2015-02-02T22:46:41+08:00

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Example:
( x + y ) ³  =  ?

Step 1:  Cube the 1st term.
Step 2: Square the 1st term, multiply it to the 2nd term, finally, multiply by 3.
Step 3: Square the 2nd term, multiply it to the first terms, finally, multiply by 3.
Step 4: Cube the 2nd term.
Step 5: Combine the results of your steps and reduce if necessary.

Cube the binomial:
( x + y ) ³

Step 1: Cube x.
= x³

Step 2: Square x, multiply by y, then multiply by 3.
= 3x²y

Step 3: Square y, multiply by x, then multiply by 3.
= 3xy²

Step 4: Cube y.
= y³