Sviatoslav solved the quadratic equation x^2-x-1=0 by completing the square. in the process, he came up with the equivalent equation (x+a)^2 = b, where a and b are constants. what is b?

and  

and b=

Step-by-step explanation:

We are given that a quadratic equation

We have to solve the equation by completing square and find the value of b.

and

And

Therefore, and  

and b=

answer: 21$

step-by-step explanation:

$42 / $14 = 3   (ratio 3: 1)

$7 x 3 = $21