Question

If one of the zeroes of the quadratic polynomial (k – 1) + + k + 1 is -3, then what is the value of k ?
120+ 9.​

Answer 1

Answer:

one of the zeroes of the quadratic polynomial (k – 1) + + k + 1 is -3, then what is the value of k ?

120+ 9.

Answer 2

Answer:

As -3 is the root of the above equation, we need to substitute -3 in x from that we can find k

(k-1)x+kx+1=0

(k-1)(-3) + k(-3) + 1=0

-3k +3- 3k + 1=0

-6k + 4=0

k=2/3 is the required solution

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