Math, asked by sameerkhan234, 1 year ago

if one root of the quadratic equation kx square minus 3 x minus 1 is equal to zero is 1.2 then find the value of k

Answers

Answered by nishant782325
2
the value of k is equal to 3.2

sameerkhan234: your answer is wrong
sameerkhan234: answer is 10
nishant782325: x=1.2 not 1/2
nishant782325: check the solution
Answered by arpiitapatel
2

Answer:


Step-by-step explanation:

Kx^2 - 3x - 1 = 0

1/2 is the zero of the quadratic equation

Therefore,

K(1/2)^2 - 3(1/2) -1 = 0

K1/4 - 3/2 - 1 = 0

2k - 12 - 8/8 =


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Jimbo: I can't understand plz make it more clear
Jimbo: With steps
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