Solve x^2-x-1=0 - ScanMath

DOWNLOAD FOR FREE

Type your math problem... x^2-x-1=0

Question

Solve the quadratic equation

Solve using the quadratic formula

Solve by completing the square

Solve using the PQ formula

x_{1} = \frac{1 - 5}{2}, x_{2} = \frac{1 + 5}{2}

Alternative Form

x_{1} \approx - 0.618034, x_{2} \approx 1.618034

Show Solution