Question

Which polynomial correctly combines the like terms and expresses the given polynomial in standard form?

9xy3 – 4y4 – 10x2y2 + x3y + 3x4 + 2x2y2 – 9y4

–13y4 + 3x4 – 8x2y2 + x3y + 9xy3
–13y4 + x3y – 8x2y2 + 9xy3 + 3x4
3x4 – 8x2y2 + x3y + 9xy3 – 13y4
3x4 + x3y – 8x2y2 + 9xy3 – 13y4

Answer 1

Option A. (–13y4 + 3x4 – 8x2y2 + x3y + 9xy3)

Explanation:

its correct

Answer 2

Answer:

The first option

Step-by-step explaination:

`9 {xy}^(3) - 4 {y}^(4) - 10 {x}^(2) {y}^(2) + {x}^(3) y + {3x}^(4) + {2x}^(2) {y}^(2) - 9 {y}^(4)`

`(- 4 {y}^(4) - 9 {y}^(4) ) + ( - 10 {x}^(2) {y}^(2) + {2x}^(2) {y}^(2)) + 9 {xy}^(3)+ {x}^(3) y + {3x}^(4)`

`- 13 {y}^(4) - 8 {x}^(2) {y}^(2) + 9 {xy}^(3) + x {}^(3) y + 3x {}^(4)`

`- 13 {y}^(4) + {3x}^(4) - 8 {x}^(2) {y}^(2) + {x}^(3) y + {9xy}^(3)`