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Quantitative Aptitude

Quadratic Equations

For what valu...

Question

For what value of k, $(4 - k) x^{2} + (2 k + 4) x + (8 k + 1) = 0$ ,
is a perfect quadratic equation.

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Solution

k = 0, 3
Hint :
Put discriminant = 0 to get the value of k.

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