Question #03617

1 Answer
Sep 7, 2016

((a = -2, b = -7),(a = 0, b = 5))

Explanation:

Given

p(x) = (1 + x)^5 (1 + a x)^6 = sum_(k=0)^11 c_kx^k

we know that

c_k = (1/(k!)(d^kp)/(dx^k))_(x=0)

so

c_1 = 5+6a =b
c_2=10 + 30 a + 15 a^2 = 10

Solving for a,b we have two outcomes

((a = -2, b = -7),(a = 0, b = 5))