Math, asked by happy26851, 6 months ago

If 81y2
– k = (9y +1
2
) (9y-
1
2
) then the value of k is …

Answers

Answered by vk8091624

30

Answer:

10x - 9y = 12 10(2k - 1) - 9k = 12 20k - 10 - 9k = 12 11k = 22 k = 2 .

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