if one zero of the polynomial kx²+2x+k²+2 is 3 then find the value of k ?
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2
kx² + 2x + k² + 2 has a zero 3 then it satisfy the equation
9k + 6 + k² + 2 = 0
k² + 9k + 8 = 0
k² + 8k + k + 8 = 0
k(k+8) +1(k+8) = 0
(k+8)(k+1) = 0
k = -8 or -1
9k + 6 + k² + 2 = 0
k² + 9k + 8 = 0
k² + 8k + k + 8 = 0
k(k+8) +1(k+8) = 0
(k+8)(k+1) = 0
k = -8 or -1
Answered by
0
The answer is k=-1 and k=-8
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