What is the positive solution to the equation 0 = –x2 + 2x + 1? quadratic formula: x = startfraction negative b plus or minus startroot b squared minus 4 a c endroot over 2 a endfraction –2 + startroot 2 endroot 2 – startroot 2 endroot 1 + startroot 2 endroot –1 + startroot 2 endroot

Step-by-step explanation:

If a quadratic equation is defined as

         .... (1)

then the quadratic formula is

The given quadratic equation is

It can we written as

            .... (2)

On comparing (1) and (2) we get

Substitute these values in the quadratic formula.

Taking out common factors.

Two roots are

and

We know that

So

Therefore, root is positive and is negative.