Math, asked by shubhamverma7359, 5 months ago

5xsquare-2kx+20=?
find the value of k

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Answered by anvithamadhuri

2

Answer:

5x^2-2kx+20=0

Roots are real and equal..

So,x1=a,x2=a

If k=10,5x^2-20x+20=0

x^2-4x+4=0

(x-2)(x-2)=0

x=2,2

x1=2,x2=2

=>k=10

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