Решите примеры 1)-5m(-4n) 8k 2)3,8x(-0,35 у) (-4,3) 3) 9/19 p (- 1 1/3) 3/7 4)-19,2 а 5/8...

Question

Решите примеры
1)-5m(-4n) 8k
2)3,8x(-0,35 у) (-4,3)
3) 9/19 p (- 1 1/3) 3/7
4)-19,2 а 5/8 b (- 5/6)

Answer 1

• -5m * (-4n) * 8k

1. (5*4*8) * mnk
2. 160mnk = 160kmn

• 3.8x * (-0.35y) * (-4.3)

1. -(3.8*0.35*4.3)xy
2. -5.719xy

• 9/19p * (-11/3) * 3/7

1. -9/19p * 11/3 * 1/7
2. -99/133p

• -19.2a * 5/8b * (-5/6)

1. -19.2a *0.625b * (-5/6)
2. 192/10a * 625/1000b * 5/6
3. 32/2a * 5/8b
4. 16a * 5/8b
5. 2a * 5b = 10ab

DG_Janja