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gutierrezaandrea56
05.07.2019 •
Mathematics
Astudent does the following to simplify a rational expression. is the work correct? explain any errors and how you would correct them.![\frac{3x + x {}^{2} }{3x} = 1 + x {}^{2}](/tex.php?f= \frac{3x + x {}^{2} }{3x} = 1 + x {}^{2} )
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Ответ:
The work done by the student is not correct.
Explanation:
The given rational expression is,
Since 3x is the common denominator of 3x and
.
It can be written as,
Simplify the above expression,
So the correct value of the expression is,
.
According to the student the simplified form of the expression is,
Which is not correct, because the student takes 3x in denominator of 3x only as shown below,
The error made by the student is he didn't take 3x in the denominator of
.
Therefore, the simplified form written by the student is incorrect.
Ответ:
5 and above give it a shove four and below let it go