nancyhamud42
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ONE HUNDRED POINTS!!
Which is the correct second step for solving the equation (x+3)^2-4=18 ?
A. sqrt(x+3)^2 = ±sqrt(18)
B. sqrt(x+3)^2= ±sqrt(22)
C. sqrt(x+3)^2 = sqrt(18)
D. sqrt(x+3)^2 = sqrt(22)

Respuesta :

Rohan11

Answer:

B

Step-by-step explanation:

We need to solve the equation:

[tex](x+3)^{2} -4=18[/tex]

[tex](x+3)^{2} -4+4=18+4\\[/tex]

[tex](x+3)^{2} =22[/tex]

[tex]\sqrt{(x+3)^{2} } =[/tex] ±√22

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