7² × 7² + 5!!
= (7 × 7) × 7² + 5!!
= 49 × 49 + (5·3·1)
= 49 × 49 + 15
= 2.401 + 15
= 2.416
7² × 7² + 5!! =
= ((7 × 7) × (7 × 7)) + (5.3.1)
= (49 × 49) + (15.1)
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7² × 7² + 5!!
= (7 × 7) × 7² + 5!!
= 49 × 49 + (5·3·1)
= 49 × 49 + 15
= 2.401 + 15
= 2.416
7² × 7² + 5!! =
= ((7 × 7) × (7 × 7)) + (5.3.1)
= (49 × 49) + (15.1)
= 2.401 + 15
= 2.416