Question

Evaluate lim x=(x-1) x = 2​

Answer 1

Answer:

(x-1)x = 2

x²- x - 2 =0

x² - ( 2 - 1 ) x - 2 = 0

x² - 2x + x -2 = 0

x( x - 2) + 1 ( x - 2) = 0

( x -2 ) ( x + 1) = 0

either, x -2 = 0

x = 2

or , x+ 1 = 0

x = -1