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Question

If one of the zeroes of a quadratic polynomial (k1)x2+kx+1 is -3, then the value of k is .


Correct Answer
A
43
Your Answer
B
43
Your Answer
C
23

Solution

The correct option is A 43
Given p(x)=(k1)x2+kx+1 and p(3)=0
(k1)(3)2+k(3)+1=0
9(k1)3k+1=0
9k93k+1=0
6k8=0
6k=8
k=86
k=43

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