# Concept derivation guides

299 concept teaching guides, separate from the 36,000 individual question derivations.

[Search all questions & derivations →](/en/explore/)

1 1 results · Page 1 of 1



Concept guide



## [Equation: solving x²/(x−1)=1/(x−1) inside its domain](/en/derivations/derivation-mko-equation-01/?from=%2Fen%2Fderivations%2F%3Fq%3Dmko-equation)

With allowed domain ℝ, find the solution set of the equation x²/(x−1)=1/(x−1), and explain why the equation x²=1 obtained by multiplying both sides by x−1 has two solutions while the original has only one.

Equation

derivation-mko-equation-01





1 1 results · Page 1 of 1