Question

1) −2(3x − 5) + 8(2 − 4x); 2) −9(4a + m) + 5(m − 9a);

Answer 1

Ответ:

1) -2(3х-5)+8(2-4х)

-2(3х-5-4(2-4х))

-2 (3х-5-8+16х)

- 2(19х-13)

2) -9(4а+m)+5(m-9a)

-36a-9m+5(m-9a)

-36a-9m+5m-45a

-81a-9m+5m

-81a-4m

Answer 2

Sure, I can help you simplify these expressions.

1. −2(3x − 5) + 8(2 − 4x):

First, distribute the constants outside the parentheses:

−2 * 3x + 2 * 5 + 8 * 2 - 8 * 4x

Simplify each term:

-6x + 10 + 16 - 32x

Combine like terms:

-6x - 32x + 10 + 16

-38x + 26

So, the simplified expression is: -38x + 26.

2. −9(4a + m) + 5(m − 9a):

First, distribute the constants outside the parentheses:

-9 * 4a - 9 * m + 5 * m - 5 * 9a

Simplify each term:

-36a - 9m + 5m - 45a

Combine like terms:

-36a - 45a - 9m + 5m

-81a - 4m

So, the simplified expression is: -81a - 4m.