Question

2 raiz de x - 1 = x - 1

Answer 1

2√x-1 = x - 1
2 = (x-1/√x-1)*(√x-1/√x-1)
2 = (x-1 * √x-1)/x-1
2 = √x-1

x-1 = 2^2
x = 4-1= 3