Math, asked by 2287stkabirnrnp82, 3 months ago

If 1/3
is one of the solutions of equation 12x2 + kx + 1 = 0, then k =
(7, - 7, -2)

Answers

Answered by Jeevani2005
3

Step-by-step explanation:

p(x) = 12x² - kx + 1

if one of the solutions is 1/3 ,

then p(1/3) = 0

= 12 ( 1/3)²- k(1/3) + 1=0.

12 ×1/9 -k(1/3) = -1

4 /3 -k/3 = -1

4-k /3 = -1

4-k = -3

k = 7 .

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