Question

Which equation has the solution x=1+- sqrt 5?

Answer 1

its d

Explanation:

Answer 2

`x = 1 \pm √(5) \\ \\ x - 1 = \pm √(5) \\ \\ (x-1)^2 = (√(5))^2 = 5 \\ \\ x^2 -2x +1 = 5 \\ \\ x^2 -2x -4 = 0`