solve the quadratic equation by factorisation

Question

x-1/x=3 xnot equal to 0

Answer 1

x^2 - 1 = 3x <--- multiplies both sides by x

x^2 - 3x - 1 = 0

x = [3 +or- sqrt( 9 + 4) ] /2

x = [ 3 +or- sqrt(13)]/2