Question

The quadratic equation with real coefficients whose one root is$\frac{4}{3}$, will be.

• A. $\frac{3}{2}$
• B. $\frac{2}{1}$
• C. $\frac{5}{3}$
• D. $e^{x} - x - 1 = 0$

Answer 1

Answer: (A)

$\frac{3}{2}$

Answer 2

Let$\alpha^{2} + \beta^{2}$, then its conjugate $f(x) = x^{2} + 4x + 1$, so

required equation is given by $f(x) > 0$

⇒ $f(x) > 1$⇒ $x \geq 0$