Question

 For which value of  K, the equation 2x2+Kx+3=0 has equal roots?

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Answer 1

Answer:

given quadratic equation is

2x² + Kx + 3 = 0

here,

a = 2

b = k

c = 3

we know, for equal roots

b² -4ac = 0

so,

k² -4.2.3. = 0

=> k² - 24 =0

=> k ² = 24

=> k = √24 = ±√2√6