eliannagutierrez eliannagutierrez

26-01-2021
Mathematics

contestada

complete the square

2x^2-206=-20x

Respuesta :

hxneycxstard hxneycxstard

26-01-2021

Answer: Here ya go! I hope this helps you out!

Ver imagen hxneycxstard

Answer Link

mhanifa mhanifa

27-01-2021

Answer:

x = - 5 ± 8√2

Step-by-step explanation:

2x² - 206 = -20x
x² - 103 = -10x
x² + 10x = 103
x² + 2*5x + 5² = 103 + 25
(x + 5)² = 128
√(x + 5)² = √128
x + 5 = ± 8√2
x = - 5 ± 8√2

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