Mathematics - Quadratic Equation Question with Solution | TestHub

MathematicsQuadratic EquationTheory of equationsHard2 minQB

MathematicsHardinteger

If $a, b \in R$ and equations $ax^{2} + 30 x + b = 0$ and $x^{2} + 3 x + 4 = 0$ have a common root, then $4 a - b$ is

Answer:

Solution:

$x^{2} + 3 x + 4 = 0$ has imaginary roots so both roots are common

Stream:JEESubject:MathematicsTopic:Quadratic EquationSubtopic:Theory of equations

⏱ 2mℹ️ Source: QB

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