Question

For the equation 3x² + px + 3 = 0, p > 0, if one of the root is the square of the other, then p is equal to-

• A. 1/3
• B. 1
• C. 3
• D. 2/3

Answer 1

Answer: (C)

3

Answer 2

a + a² =$\frac{- p}{3}$; a. a² = 1 Ž a³ = 1

a = 1, w, w² , If a = 1, p = –b

if a = w $\frac{- p}{3}$= w + w² = –1; p = 3

but p > 0 p Ž – b hence p = 3