Current location - Training Enrollment Network - Mathematics courses - My math is average. I never got full marks in the exam. There are still some things I don't know. Can you talk about Zeng Gen's unsolved problems? thank
My math is average. I never got full marks in the exam. There are still some things I don't know. Can you talk about Zeng Gen's unsolved problems? thank
Denominator cannot be zero, and zero denominator is meaningless.

Adding a root is the root that makes the denominator of the equation zero.

Because there are unknowns in the denominator of the fractional equation, if the root is substituted into the equation to make the denominator zero, we say it is increasing the root. If there is no other root and only one added root, we say that the equation has no solution.

For example,

0/(X- 1)=X+ 1

And then x? - 1=0

Then X= 1 or-1.

When X= 1 is meaningless and the denominator is 0, then X= 1 is an incremental root. The solution of this fractional equation is X=- 1.

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