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Black Book Advanced Problems in MathematicsMathematicsQuadratic Equation

Given a, b, c are three distinct real numbers satisfying the inequality a - 2b + 4c > 0 and the equation ax^2 + bx + c = 0 has no real roots. Then the possible value(s) of 4a+2b+c a+3b+9c is/are :

Options

A2
B-1
C3
D2 .

Correct answer

A. 2

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