Category: Mathematics | Last updated: 2026-09-18

What is the value of x² + 1/x² if x + 1/x = 4?

A) 12

B) 14

C) 16

D) 18

Explanation

(x+1/x)² = x²+2+1/x². 16 = x²+1/x²+2. x²+1/x² = 14.

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