Two polynomials P and D are given. Use either synthetic or long division to divide

P(x)

by

D(x),

and express P in the form

P(x) = D(x) Q(x) + R(x).

A.) P(x) = 12x⁴ + 9x³ + 7x², D(x) = 3x² + 1

B.) P(x) = x⁴ + 2x³ 13x, D(x) = x 4