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28.09.2019 •
Mathematics
Solve and check: 3 x2 5x 6 x − 1 x 2 = 7 x 3
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Ответ:
x = 7 is a solution.
x = -2 is an extraneous solution .
Ответ:
Here, the given expression,
,
For x = -2,
The right side of the given equation is not defined,
⇒ x = -2 can not be the solution of the given equation.
While for x = 7,
,
Hence, the solution of the given equation is,
x = 7.
Ответ: