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07-04-2020
Mathematics

contestada

Rewrite the equation by completing the square x^2 + 14x + 49 = 0

(X + [ ] )^2 = [ ]

Respuesta :

07-04-2020

Answer:

-7,1

Step-by-step explanation:

x^2+14x+49=0

x^2+14x/2=0-49

x^2+7x=-49

x^2+(7x)²=-49+49

x²+7x²=0

(x+7x)²=0

√(x+7x)²=0

x+7=0

x=-7,1

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