Question

To simplify the expression below, what should you do first?

4y-yx(3-7y)+5+2(8-y)
Combine all like terms.
Subtract inside parentheses.
Subtract y from 4y.
Distribute the –y and 2 to the terms in the parentheses.

Answer 1

First answer is DISTRIBUTE and second answer is 7y^2-y+21

Explanation:

Answer 2

4y - yx(3-7y) + 5 + 2(8-y) equals to 7xy^2 − 3xy + 2y + 21

Explanation:

1. Multiply numbers inside the parentheses.

4y - yx(3-7y) + 5 + 2(8-y)= 4y − 3yx + 7y^2x + 5 + 16 − 2y

2. Then combine all like terms

4y − 3yx + 7y^2x + 5 + 16 − 2y

4y - 2y = 2y

2y − 3yx + 7y^2x + 5 + 16

5 + 16 = 21

2y − 3yx + 7y^2x + 21

3. After combining like terms, simplify.

2y − 3yx + 7y^2x + 21

Move y^2

2y − 3yx + 7xy^2 + 21

Move 2y

− 3yx + 7xy^2 + 2y + 21

Reorder - 3yx and 7xy^2 (7xy^2 is more bigger than -3yx)

7xy^2 − 3yx + 2y + 21

4. Final answer = 7xy^2 − 3xy + 2y + 21