Algebramedium · Past Paper
If x^2 - 4x + 1 = 0, then the value of x + 1/x is:
A4
B2
C-4
D1
✓ Correct Answer: A — 4
Divide the whole equation by x: x - 4 + 1/x = 0 => x + 1/x = 4.
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✓ Correct Answer: A — 4
Divide the whole equation by x: x - 4 + 1/x = 0 => x + 1/x = 4.
Share this question