Question

Find the value of k for the following quadratic equation, so that it should have equal roots: kx²+ 6x + 1 = 0​

Answer 1

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Answer 2

Answer:

equal roots means b*2-4ac =0

substituting the values we get the following equation:

6*6 - 4k*1=0

30-4k=0

-4k=-36

minus and minus cancels

therefore k=9