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56 Points! Multiple choice algebra question. The quadratic equation x^2-8x=-20 is to be solved by completing the square. Which equation would be a step in that solution? Photo attached. Thank you!

56 Points! Multiple choice algebra question. The quadratic equation x^2-8x=-20 is-example-1

1 Answer

2 votes

Answer:

B) x - 4 = +2i

Explanation:


{x}^(2) - 8x = - 20


{x}^(2) - 8x + 16 = - 4


{(x - 4)}^(2) = - 4

x - 4 = +2i

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