Question

In each of the following ,find the value of k 7x²+kx-3=0,x=√2/3

Answer 1

Answer:

put value of x into the equation ok

7×2/3²+k×2/3-3=0

7×4/9+2k/3=3

28/9+2k/3=3

28/9+6k/9=3

28-6k=27

-6k=-1

k=-1/6

ok

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