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Quadratic Equation and Inequalities question

2009 · Shift 0 · Q44

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PYQ Library
JEE Main
Mathematics
Quadratic Equation and Inequalities
2009 · Shift 0 · Q44

Quadratic Equation and Inequalities question

2009 · Shift 0 · Q44

JEE MainMathematicsQuadratic Equation and InequalitiesMCQ+4 / −1

If the roots of the equation

b{x^2} + cx + a = 0

imaginary, then for all real values of

x

, the expression

3{b^2}{x^2} + 6bcx + 2{c^2}

is :

A
less than $4ab$
B
greater than $-4ab$
C
less than $-4ab$
D
greater than $4ab$

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