Question

(5m-4)-4(3m+2) если m=-0,2​

Answer 1

Ответ:

Пошаговое объяснение:

(5m - 4) - 4(3m + 2), если m = -0,2​

(5m - 4) - 4(3m + 2) = 5m - 4 - 12m - 8 = -7m  - 12

Подставим значение  m = -0,2​

-7m - 12 = -7 · (-0,2) - 12 = 1,4 - 12 = -10,6

Answer 2

To evaluate the expression (5m - 4) - 4(3m + 2) when m = -0.2, simply substitute -0.2 for m and perform the arithmetic calculations:

(5 * (-0.2) - 4) - 4(3 * (-0.2) + 2)

= (-1 - 4) - 4(-0.6 + 2)

= (-5) - 4(1.4)

Now, perform the multiplication:

= (-5) - 5.6

Finally, subtract:

= -5 - 5.6

= -10.6

So, when m = -0.2, the value of the expression (5m - 4) - 4(3m + 2) is -10.6.