Question

(x²-1)/x=2
Give me the answer of this solution??

Answer 1

X × X - 1 / X

X - 1= 2

X = 2 + 1

X = 3

Answer 2

Solution:

(X^2 -1)/x = 2

X^2 - 1 =2x

Or, X^2 - 2x - 1 = 0

Using quadratic formula,

【 D = 4 - 4*(-1)(1). Or, = 8 】

-(-2) plus or minus root of 8 / 2

» 2 + 2√2/2

= 2(1+√2)/2

= √2 +1

【OR】

» 2-2√2/2

=2(1 - √2)/2

= 1 - √2