Question

x²–1 /x+1 =4 ; x = ?​

Answer 1

Step-by-step explanation:

(x^2-1)/(x+1)=4

=>{(x+1)(x-1)}/(x+1)=4

=>x-1=4

=>x=4+1=5

Answer 2

x^2 -1=4x+4

x^2 - 4x -5=0

x^2 +x -5x -5=0

(x-5)(x+1)=0

so

x = 5 , -1