Question

If the roots a quadratic equation 2x2+kx3=0 are equal to each other then the
value of k is
​

Answer 1

2x² + kx + 3 = 0

For equal roots

D = 0

√b² – 4ac = 0

b² – 4ac = 0

k² – 4(2)(3) = 0

k² = 24

k = ± √24

k = ± 2√6

( a ) ± 2√6 is the correct answer

Answer 2

SIMPLY DISCRIMINANT EQUAL TO 0...

HOPE YOU UNDERSTAND...

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