The polynomial of degree 3 , P ( x ) , has a root of multiplicity 2 at x = 3 and a root of multiplicity 1 at x = − 4 . The y -intercept is y = − 10.8 .

Question

Formula?

Answer 1

P(x) =a (x - 3)²(x + 4)

-10.8 = a(0 - 3)²(x + 4)

Can you solve for a and answer?