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Solve the following equation using the square root method. Round your answers to two decimal places. (x−16)2=15. Please I need help.

 Mar 22, 2016
 #1
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(x-16)^2=15 = {x=16-sqrt(15), x=sqrt(15)+16}, or either: 12.13 or 19.87

 Mar 22, 2016
 #2
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Solve for x:
(x-16)^2 = 15

Take the square root of both sides:
x-16 = sqrt(15) or x-16 = -sqrt(15)

Add 16 to both sides:
x = 16+sqrt(15) or x-16 = -sqrt(15)

Add 16 to both sides:
Answer: |  x = 16+sqrt(15)        or         x = 16-sqrt(15)

 Mar 22, 2016

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