Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x? 1 plus-or-minus startroot 21 endroot i negative 1 plus-or-minus startroot 19 endroot i 1 plus-or-minus 2 startroot 19 endroot i 1 plus-or-minus startroot 19 endroot i

-1±√19=x

Step-by-step explanation:

For cuadratic formula we can use the following equation

x+(b/2)±√(b²/4-c)=0

The equation to solve x²-2x+20=0

Where a=1

b=-2

c=20

(2/2)±√2²/4-20=-x

-1±√19=x

the answer is B

Step-by-step explanation:

thank me later ;)

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step-by-step explanation:

step-by-step explanation:

idk the answer i want to say 10 but then it would be equal so try 9 but then yeah so yeah we love edgen