Question

The biquadratic polynomial from the following is ______

(a) (x^2+3)(x^2-3)

(b) x^2-7

(c) x^7+x^6+x^5

(d) 5x-3

I have been asked this question during an online interview.

This intriguing question comes from Geometrical Meaning of Zeros of Polynomial topic in section Polynomials of Mathematics – Class 10

Answer 1

Right choice is (a) (x^2+3)(x^2-3)

The explanation is: A biquadratic polynomial has highest power 4.

Hence, the polynomial with the highest power as 4 is x^4-9 or (x^2+3)(x^2-3).