Question

-2a•(-0,1)
7,2a•(-5b)
-9,2•(-2a)•(-1)
-0,4m•(0,5n)
9m•(-5a)• (-4b)
-10a•(-0,1b)
0,25m•(-4x)
​

Answer 1

Пошаговое объяснение:

$- 2a \times( - 0.1) = 2a \times 0.1 = 0.2a$

$7.2a \times ( - 5b) = - 7.2 a \times 5b = - 36ab$

$9.2 \times ( - 2a) \times ( - 1) = 9.2 \times 2a \times 1 = 9.2 \times 2a = 18.4a$

$- 0.4m \times (0.5n) = - 0.4m \times 0.5n$

$9m \times ( - 5a) \times ( - 4b) = 9m \times 5a \times 4b = 180abm$

$- 10a \times ( - 0.1b) = 10a \times 0.1b = ab$

$0.25m \times ( - 4x) = - 0.25 \times 4x = - x$