Question

(10а-6b+5c-4d)-(9a-2b-4c+2d)

Answer 1

10a-9a-6b+2b+5c+4c-4d-2d=a-4b+9c-6d

Answer 2

To subtract the expression (10a - 6b + 5c - 4d) from (9a - 2b - 4c + 2d), you'll need to perform the subtraction for each term separately:

(10a - 6b + 5c - 4d) - (9a - 2b - 4c + 2d)

Now, let's subtract each term:

1. Subtract the "a" terms: 10a - 9a = a

2. Subtract the "b" terms: -6b - (-2b) = -6b + 2b = -4b

3. Subtract the "c" terms: 5c - (-4c) = 5c + 4c = 9c

4. Subtract the "d" terms: -4d - 2d = -4d - 2d = -6d

Now, put all the results together:

a - 4b + 9c - 6d

So, the simplified expression after subtracting (10a - 6b + 5c - 4d) from (9a - 2b - 4c + 2d) is:

a - 4b + 9c - 6d