1 - 4/x + 4/x² = 0 <= kedua ruas kali x²
x²-4x+4 = 0 <= faktorkan
(x-2)² = 0
x = 2
2/x² + x²/2 = 2/2² + 2²/2
= 2/4 + 4/2
= 1/2 + 4/2
= 5/2 (E)
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1 - 4/x + 4/x² = 0 <= kedua ruas kali x²
x²-4x+4 = 0 <= faktorkan
(x-2)² = 0
x = 2
2/x² + x²/2 = 2/2² + 2²/2
= 2/4 + 4/2
= 1/2 + 4/2
= 5/2 (E)