Question

Hi :)

[(10!! × 7!!) + (20² × 17)] - 5 = ​

Answer 1

[(10!! × 7!!) + (20² × 17)] - 5

( ( 10 × 8 × 6 × 4 × 2 ) × ( 7 × 5 × 3 × 1 ) ) + ( ( 20 × 20 ) × 17 ) - 5

( ( 80 × 24 × 2 ) × ( 35 × 3 ) ) + ( 400 × 17 ) - 15

( ( 80 × 48 ) × 105 ) + 6.800 - 17

( 3.840 × 105 ) + 6.800 - 17

403.200 + 6.800 - 17

410.000 - 17

409.983

Answer 2

♡˖꒰ j a w a b a n ꒱ :

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10!!

= 10 × 8 × 6 × 4 × 2

= 80 × 24 × 2

= 3.840

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_______________

7!!

= 7 × 5 × 3 × 1

= 35 × 3

= 105

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_______________

20²

= 20 × 20

= 400

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_______________

[(10!! × 7!!) + (20² × 17)] - 5

= (10 × 8 × 6 × 4 × 2) + (20 × 20 × 17) - 5

= (3.840 × 105) + 6.800 - 5

= 403.200 + 6.800 - 5

= 410.000 - 5

= 409.995

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thx.