The Equation x−2x−1=1−2x−1 has no root one root two roo
| The Equation x−2x−1=1−2x−1 has
A. no root
B. one root
C. two roots
D. infinitely many
Please scroll down to see the correct answer and solution guide.
Right Answer is: A
SOLUTION
x−2x−1=1−2x−1−−−−−(1)⇒x2−x−2=x−1−2⇒x2−2x+1=0⇒(x−1)2=0⇒x−1=0⇒x=1
But when x = 1 (1) is not defined ∴ no root