Question

29/50

6! + 4! - 5! × 2 = ​

Answer 1

Penjelasan dengan langkah-langkah:

6!

= 6x5x4x3x2x1

= 30x4x3x2x1

= 120x3x2x1

= 360x2x1

= 720x1

= 720

4!

= 4x3x2x1

= 12x2x1

= 24x1

= 24

5!

= 5x4x3x2x1

= 20x3x2x1

= 60x2x1

= 120 x 1

= 120

6! + 4! - 5! x 2

720 + 24 - (120 x 2)

744 - 240

= 504

Answer 2

Penjelasan dengan langkah-langkah:

• 6! + 4! - 5! + × 2 = ?

= ( 6 × 5 × 4 × 3 × 2 × 1 ) + ( 4 × 3 × 2 × 1 ) - 5! × 2

= ( 30 × 4 × 3 × 2 × 1 ) + ( 12 × 2 × 1 ) - 5! × 2

= ( 120 × 3 × 2 × 1 ) + ( 24 × 1 ) - 5! × 2

= ( 360 × 2 × 1 ) + 24 - 5! × 2

= ( 720 × 1 ) + 24 - ( 5 × 4 × 3 × 2 × 1) × 2

= 720 + 24 - ( 20 × 3 × 2 × 1 ) × 2

= 720 + 24 - ( 60 × 2 × 1 ) × 2

= 720 + 24 - ( 120 × 1 ) × 2

= 720 + 24 - 120 × 2

= 720 + 24 - 240

= 744 - 240

= 504