The value of b and c for which the identity f(x + 1) – f(x) = 8x + 3 is satisfied, where f(x) = bx2 + cx + d, are
Answer & explanation
Correct answer: option 2
From the given identity
b(x + 1)2 + c(x + 1) + d - (bx2 + cx + d) = 8x + 3
⇒ 2bx + b + c = 8x + 3
⇒ b = 4, c = – 1
Hence (2) is the correct answer.