Question

URGENT PLEASE HELP ME, ITS DUE IN A HOUR ​

Answer 1

8x^2+6x+3

Explanation:

13x^2+7x-2

- 5x^2- x+3

============

8x^2=6x=3

Answer 2

Area of gray region =
`8x^2+8x-7`

Explanation:

The area covered by the furniture can be subtracted from the total area of the room to calculate the area of the gray region.

Total area of the room:
`13x^2+7x-2`

Area taken up by furniture:
`5x^2-x+5`

Area of gray region = total area of the room - area taken up by furniture

Area of gray region =
`13x^2+7x-2-(5x^2-x+5)`

Remember to distribute the negative sign:

Area of gray region =
`13x^2+7x-2-5x^2+x-5`

Combine like terms:

Area of gray region =
`8x^2+8x-7`