okiikenzie okiikenzie

04-05-2020
Mathematics

contestada

quadratic equation please help

quadratic equation please help class=

Respuesta :

ghanami ghanami

04-05-2020

Answer:

x= -3+√2 or x= -3-√2 ( answer : A and B )

Step-by-step explanation:

hello :

x²+6x+9 = (x+3)².....identity

x²+6x+9 =2 means : (x+3)²=2

so : (x+3 = √2) or (x+3 = - √2)

so two solutions :

x= -3+√2 or x= -3-√2

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