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Tìm số hữu tỉ
(x-5/6)^2=1/36

1 Answer

10 votes

Answer:

x =
(2)/(3) , x = 1

Explanation:

(x -
(5)/(6) )² =
(1)/(36) ( take square root of both sides )

x -
(5)/(6) = ±
\sqrt{(1)/(36) } = ±
(1)/(6) ( add
(5)/(6) to both sides )

x =
(5)/(6) ±
(1)/(6) , then

x =
(5)/(6) -
(1)/(6) =
(4)/(6) =
(2)/(3)

x =
(5)/(6) +
(1)/(6) =
(6)/(6) = 1

User Bilal Fazlani
by
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