How do you multiply (x^5-1)(x^2+2)?

1 Answer

x^10+2x^5-x^2-2

Explanation:

Use FOIL. First multiply the first terms in either binomial to get x^10, then multiply the first term in the first binomial with the second term in the second binomial to get 2x^5, then multiply the second term in the first binomial with the first term in the second binomial to get -x^2, then finally multiply the second terms in either binomial to get -2.

Put them all together for

x^10+2x^5-x^2-2