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)
Answer: 3 3/7
Step-by-step explanation:
6 - 2 4/7
6 is the same thing as 5 7/7
5 7/7 - 2 4/7 = 3 3/7
Answer:
2/7
Step-by-step explanation: