Question

x square_ one by X + 1 = 4 then find the value of x​

Answer 1

x² -1 / X +1 = 4

x² - 1 = 4(x+1)

x² -1 = 4x + 4

x² - 4x -5

x² +X - 5x - 5

x(x + 1) - 5(x +1)

(x-5) (x+1)

X = 5

and

X = -1

here is your answer...

Answer 2

x^2-1/x+1=4

x^2-1=4x+4

x^2-1-4-4x

x^2-4x-5

x^2-5x+x-5

x(x-5)+1(x-5)

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