Math, asked by narini40, 1 year ago

For what cvalue of k will the sum of roots of quadratic equation kx2+6x+4k=0 be equal to the product of the roots

Answers

Answered by siddharthmaurya01
2
if sum roots and product of roots are equal then - b/a=c/a
-b = a
here A equal to 2 k and B equal to 6 and c equal to 4k then..
-6=4k
k=-3/2
Answered by MonarkSingh
8
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Here is your answer.
The quadratic equation is
kx {}^{2}  + 6x + 4 k= 0
Here
a = k
b = 6
c = 4k

Sum of roots. = -b/a
and
Product of the roots = c/a
ATQ
 -  \frac{6}{k}  =  \frac{4k}{k}  \\  - 6 = 4k \\ k =  -  \frac{6}{4}  \\ k =  -  \frac{3}{2}  \\ k =  - 1.5
The value of k is -1.5

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