Question

The value of $x^{n}$is.

• A. 0
• B. 1
• C. 2
• D. 100

Answer 1

Answer: (B)

1

Answer 2

$Q( - 2) = 15$ $Q(x) = \alpha x^{2} + \beta x + \gamma$

$\therefore\alpha - \beta + \gamma = 6$

$4\alpha + 2\beta + \gamma = 3$

$4\alpha - 2\beta + \gamma = 15 \Rightarrow$

$\alpha = 2,\beta = - 3,\gamma = 1$.

$\therefore$