Which expressions are equivalent to 3(x + 3y + 2x − y )? 1. 3(3x + 2y) and 9x + 6y
2. 3(3x + 4y) and 9x + 12y
3. 3(x + 4y) and 3x + 12y
4. 3(x + 2y) and 3x + 6y

i dont know i just need points

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

it will be a cylinder. with a diameter of 8 and 4 single pieces high

step-by-step explanation: