(x+1) (x-1)
(x+1) (x-1)=x^2-1

In the following situation, determine whether you are asked to determine the number of permutations or combinations. then do the calculation how many ways are there to pick a starting five from a basketball team of twelve members? a. permutation; ps - 2520 b. combination; 1c, - 792 c. combination: 2cs - 2520 d. permutation; ps - 95040

Using elimination, what is -4x+2y=-12 4x+8y=-24

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?