Question

2. Find the values of k for each of the following quadratic equations, so that they have two
equal roots.
(0) 2x^ +kx +3=0
(i) kx(x-2) + 6=0​

Answer 1

Answer:

I kx(x-2) +60

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Answer 2

Answer:

(i)

condition for two equal roots is

• ${b}^{2} - 4ac = 0$

${k}^{2} - 4 \times 2 \times 3 = 0$

${k }^{2} = 24$

$k = 2 \sqrt{6} \: \: or \: - 2 \sqrt{6}$