15 a2 - 1 = 5 2a - 2 Which equation results from cross-multiplying?

a.) 15 (a2 - 1) = 5 (2a - 2)

b.) 15 (2a - 2) = 5 (a2 - 1)

c.) 15 (a 2 - 1) (2 a - 2) = 5 (2 a - 2) (a 2 - 1)

Given the expression:

15 / (a²-1) = 5 / (2a-2)

cross-multiplying the above we get:

15 * (2a-2) = 5 * (a²-1)

this will give us:

15 (2a-2) = 5 (a²-1)

Answer: b] 15 (2a - 2) = 5 (a2 - 1)