Question

Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x?

A.1 plus-or-minus StartRoot 21 EndRoot i

B.Negative 1 plus-or-minus StartRoot 19 EndRoot i

C.1 plus-or-minus 2 StartRoot 19 EndRoot i

D.1 plus-or-minus StartRoot 19 EndRoot i

Answer 1

the answer is D

Explanation:

took the quiz

Answer 2

Answer:......................................

C