(41)3 = (40 + 1)3 = (40)3 + 3 × (40)2 × 1 + 3 × 40 × (1)2 + (1)3 = 64000 + 4800 + 120 + 1 = 68921

English

Expand: (41)3 -

Expand: (41)³

Sum

(41)³

= (40 + 1)³

= (40)³ + 3 × (40)² × 1 + 3 × 40 × (1)² + (1)³

= 64000 + 4800 + 120 + 1

= 68921

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