Thread: trinomial

this is confusing. how do you expand this, any tips on how to expand trinomials??

x^3 + 8

Originally Posted by algebra2

this is confusing. how do you expand this, any tips on how to expand trinomials??

x^3 + 8

This is already expanded.

If you mean factor notice that this is the sum of cubes



I hope this helps.

Good luck.

could you explain it a bit

Originally Posted by algebra2

could you explain it a bit

This is a formula that should be memorized



for your problem we had



a=x and b=2 so we get



I hope this helps.