Question

Раскройте скобки и Приведите подобные слагаемые 1) -(25x-3y)+ 1/6×(12x-12y)2) (4m-5n)×(-6)+1 1/4×(14m+8n)​

Answer 1

Ответ:

1)-23х-3у

Пошаговое объяснение:

Answer 2

1. -(25x-3y) + 1/6×(12x-12y)

First, let's distribute the negative sign to each term inside the parentheses:

-25x + 3y + 1/6×(12x-12y)

Now, let's distribute the 1/6 to each term inside the second set of parentheses:

-25x + 3y + (1/6)×12x - (1/6)×12y

Simplifying the expression:

-25x + 3y + 2x - 2y

Combining like terms:

(-25x + 2x) + (3y - 2y)

-23x + y

So the simplified expression is -23x + y.

2. (4m-5n)×(-6) + 1 1/4×(14m+8n)

First, let's distribute -6 to each term inside the first set of parentheses:

-6×4m + (-6)×(-5n) + 1 1/4×(14m+8n)

Simplifying the expression:

-24m + 30n + 1 1/4×(14m+8n)

Next, let's distribute 1 1/4 to each term inside the second set of parentheses:

-24m + 30n + (1 1/4)×14m + (1 1/4)×8n

Simplifying the expression:

-24m + 30n + 17.5m + 10n

Combining like terms:

(-24m + 17.5m) + (30n + 10n)

-6.5m + 40n

So the simplified expression is -6.5m + 40n.