Question

The roots of quadratic equation 3x² − 4√3x + 4 = 0 are 

(A) not real 

(B) real and equal 

(C) rational and distinct 

(D) irrational and distinct

Answer 1

Correct option is (B) real and equal

Explanation:

Here a = 3, b = −4√3, c = 4

Discriminant (D) = b² - 4ac

                            = (−4√3)² - 4.3.4

                            = 48 - 48

                            = 0

Therefore, the roots of the quadratic equation 3x² − 4√3x + 4 = 0 are real and equal.