SOLUTION: x cubed - 36x factor this please

Question 21702: x cubed - 36x factor this please
Answer by longjonsilver(2297) (Show Source): You can put this solution on YOUR website!
really means x*x*x - 36*x. So, what appears in both terms? An x does. So take this out of both terms...ie factorise, leaving x*(x*x - 36), which is written as .

This is your answer.

However, can be thought of as . Being able to write terms within the bracket as the "difference of squares" means we can write this is a factored pair, as follows:

This is now fully factored... multiply out the brackets to make you fully accept that it is in fact

jon.

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