Question

If 1 upon 2 is a root of
the equation
x² + kx - 2 = 0, then find the value of k ​

Answer 1

Answer:

Too difficult sis.........

Sorry

Answer 2

Answer:

K= 1

Step-by-step explanation:

GIVEN 1,2 ARE THE ROOTS

BY PROBLEM,

x= (1,2)

SO,

at x = 1

(1)*2 + k(1) -2 = 0

1 + k - 2 = 0

k = 1

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