Question

4(3-2x+5k) 6 (1-3c+d) (a+b-2)•(-7)​

Answer 1

Ответ:4(3-2x+5k)=12-8x+20k;

6(1-3c+d)=6-18c+6d;

(a+b-2)*(-7)=-7a-7b+14.

Answer 2

It looks like you have a mathematical expression that you'd like to simplify. Let's break it down step by step:

Expression: 4(3 - 2x + 5k) * 6(1 - 3c + d)(a + b - 2) * (-7)

Step 1: Distribute the constants on the outside of the parentheses to the terms inside each set of parentheses.

4 * 3 - 4 * 2x + 4 * 5k = 12 - 8x + 20k

6 * 1 - 6 * 3c + 6 * d = 6 - 18c + 6d

Step 2: Now, multiply the results from Step 1 with the remaining expression (-7).

(12 - 8x + 20k) * (6 - 18c + 6d) * (-7)

Step 3: Distribute the (-7) to each term inside the parentheses.

-7 * 12 + (-7) * (-8x) + (-7) * 20k + (-7) * 6 + (-7) * (-18c) + (-7) * 6d

Step 4: Perform the multiplications:

-84 + 56x - 140k - 42 + 126c - 42d

Step 5: Combine like terms:

56x + 126c - 140k - 42d - 126

So, the simplified expression is:

56x + 126c - 140k - 42d - 126