Question

HELP WITH THIS QUESTION ASAP!!

Answer 1

`7a^(2) +20`

Explanation:

Given: Area of one cupboard=
`3a^(2) -5y+15`

Area of second cupboard=
`4a^(2) +5y+5`

As per question, carpenter need to determine the amount of plywood required for two cupboard.

Lets, add the area of two cupboard to know the amount of plywood required.

∴
`3a^(2) -5y+15`- Area of first cupboard.

`4a^(2) +5y+5`- Area of second cupboard.

Adding both the area;

`(3a^(2) -5y+15)+(4a^(2) +5y+5)`

Now, opening the parenthesis

`3a^(2) -5y+15+4a^(2) +5y+5`

we will get
`7a^(2) +20`.

∴ Total area of cupboard=
`7a^(2) +20`