mcdaniel932 mcdaniel932

23-03-2021
Mathematics

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Solve the quadratic equation by using either a numeric or a graphic approach.

Solve the quadratic equation by using either a numeric or a graphic approach class=

Respuesta :

surjithayer10otahza surjithayer10otahza

23-03-2021

Answer:

C

Step-by-step explanation:

x²-14x-49=0

x²-14x+49=49+49

(x-7)²=98

(x-7)²=49×2

x-7=±7√2

x=7+7√2=7(1+√2)≈7(1+1.414)≈7(2.414)≈16.898≈16.9

or

x=7-7√2=7(1-√2)≈7(1-1.414)≈-7×0.414≈-2.898≈2.9

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