Question

2)
Sum of the roots of a quadratic equation is double their product. Find k
if the equation is x2 - 4kx + k + 3 = 0
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Answer 1

• Answer. x square - 4 kx +k+3=0

alpha + beta = 2( Alpha Beta )

-b/a=2(c/a)

-(-4k)/1=2(k+3)/1

4k=2(k+3)

4k=2k+6

4k-2k=6

2k=6k

k=3

Answer 2

• Answer: x square- 4 kx + k + 3 = 0

alpha + beta =2 ( alpha beta )

- b/a = 2 (c/a)

-(-4k) /=2(k+3)/1

4k=2(k+3)

4k=2k+6

4k- 2k=6

2k= 6k

k= 3