Question

If one of the zeros of a quardratic polynomial (k-1)x^2 + kx+ 1 is -3 , then what is the value of k ??

Answer 1

Answer:

Step-by-step explanation:

if -3 is a zero, then

x = -3 will satisfy the equation (k-1)x^2 + kx+ 1 = 0

(k-1)(-3)² - 3k + 1 = 0

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

9k -9-3k+1 = 0

6k = 8

k = 8/6

k = 4/3

Answer 2

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