krystinamacias001 krystinamacias001

16-05-2020
Mathematics

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Solve for the roots in the simplest form using the quadratic formula: x^2+118=20x

Respuesta :

amna04352 amna04352

16-05-2020

Answer:

x = 10 + 3sqrt(2)i, x = 10 - 3sqrt(2)i

Step-by-step explanation:

x² - 20x + 118 = 0

Using quadratic formula:

x = [-(-20) +/- sqrt[20² - 4(1)(118)]/2

x = [20 +/- sqrt(-72)]/2

x = [20 +/- i6sqrt(2)]/2

x = 10 +/- i3sqrt(2)

x = 10 +/- 3sqrt(2)i

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