Maths-
SAT
Easy
Question
If (x-2)2 -6(x-2) + 9 = 0, what is the value of x?
- 2
- 3
- 5
- 7
The correct answer is: 5
Let y = x – 2
y2 – 6y + 9 = 0
(y - 3)2 = 0
y = 3
x – 2 = 3
x = 5
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