Posted by CHRIS on Friday, December 30, 2011 at 10:41am.
For which value of x will the fraction 7/2x6 be undefined?
HOW TO DO THIS ?

MATH  Reiny, Friday, December 30, 2011 at 10:44am
A fraction is undefined if its denominator is zero, so set
2x6 = 0
2x=6
x = 3
So x = 3 makes the fraction undefined.

MATH  Todd, Friday, December 30, 2011 at 10:46am
Any fraction is undefined when the denominator is equal to zero.
In this problem the denominator is 2x6.
In order to find what value of x is needed to make the denominator zero, set it equal to x and solve.
2x6=o
2x=6
x=3
Therefore, this fraction is undefined (or has a denominator of zero) when x is equal to 3.

MATH  LISa, Friday, December 30, 2011 at 10:47am
thanks
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