Question

Kx²-9x+9=0 if one root of quadratic equation is double of another find k​

Answer 1

Answer:

2

Step-by-step explanation:

Let one root is x

so, other is 2x

Now, x+2x = 9/k

3x = 9/k

x = 3/k

and

x*2x = 9/k

2x^2 = 9/k

2*(3/k)^2=9/k

so, k=2

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