Question

Знайти значення виразу -3(2m+3n)+2(2m-5p) якщо n=-4 p=5,7 m=3,4

Answer 1

Ответ:   -6m-9n+4m-10p=-2m-9n-10p

-2*3,4-9*(-4)-10*5,7=-6,8+36-57=-27,8

Answer 2

To find the value of the expression -3(2m+3n)+2(2m-5p) when n=-4, p=5.7, and m=3.4, we'll substitute the given values and then perform the calculations.

Given: n = -4 p = 5.7 m = 3.4

Let's plug in these values:

-3(2m + 3n) + 2(2m - 5p) = -3(2 * 3.4 + 3 * (-4)) + 2(2 * 3.4 - 5 * 5.7)

Now, perform the calculations:

-3(2 * 3.4 + 3 * (-4)) + 2(2 * 3.4 - 5 * 5.7) = -3(6.8 - 12) + 2(6.8 - 28.5) = -3(-5.2) + 2(-21.7) = 15.6 - 43.4 = -27.8

So, the value of the expression -3(2m+3n)+2(2m-5p) when n=-4, p=5.7, and m=3.4 is -27.8.