Impara online a risolvere i problemi di passo dopo passo. (x-1)^(1/2)=2. Applicare la formula: x^a=b\to \left(x^a\right)^{inverse\left(a\right)}=b^{inverse\left(a\right)}, dove a=\frac{1}{2}, b=2, x^a=b=\sqrt{x-1}=2, x=x-1 e x^a=\sqrt{x-1}. Applicare la formula: \left(x^a\right)^b=x, dove a=\frac{1}{2}, b=2, x^a^b=\left(\sqrt{x-1}\right)^2, x=x-1 e x^a=\sqrt{x-1}. Applicare la formula: a^b=a^b, dove a=2, b=2 e a^b=2^2. Applicare la formula: x+a=b\to x=b-a, dove a=-1, b=4, x+a=b=x-1=4 e x+a=x-1.

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