Respuesta :

adil14

Step-by-step explanation:

look at the pic................... hope it helps

Ver imagen adil14

Answer:

-5y+7y²+7x

Step-by-step explanation:

Since two opposites add up to zero, remove the from the expression

-4y+7y²+7x3y-4y

Collect like terms

-5y

Answer= -5y+7y²+7x

ACCESS MORE
EDU ACCESS