Question

If α, β, γ, δ are roots of x⁴ + 4x³ – 6x² + 7x – 9 = 0, then the value of (1 + α²)(1 + β²)(1 + γ²)(1 + δ²) is

(a) 9

(b) 11

(c) 13

(d) 5

Answer 1

Correct option is (c) 13