Misalkan
x = 999.999.999, sehingga
A = 1.000.000.000 × 999.999.998
A = (x + 1) × (x - 1)
A = x² - 1
B = (9999.999.999)²
B = x²
Tanpa dihitung sudah jelas A < B
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Misalkan
x = 999.999.999, sehingga
A = 1.000.000.000 × 999.999.998
A = (x + 1) × (x - 1)
A = x² - 1
B = (9999.999.999)²
B = x²
Tanpa dihitung sudah jelas A < B