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Bad White [126]
3 years ago
6

Which of the following are solutions to the equation below?

Mathematics
1 answer:
Lady_Fox [76]3 years ago
7 0

Answer:

x =4 ±sqrt(5)

Step-by-step explanation:

x2 - 8x + 16 = 5

Complete the square

(x-4)^2 = 5

Take the square root of each side

sqrt((x-4)^2) = ±sqrt(5)

x-4 = ±sqrt(5)

Add 4 to each side

x-4+4 =4 ±sqrt(5)

x =4 ±sqrt(5)

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