Answer:
3y² + 3y - 9
Explanation:
(7y² + 2y +3) - (4y² - y - 6)
Don't forget the rules in Subracting the integers. Change the sign of the subtrahend and proceed to addition.
(7y² + 2y +3) - (4y² - y - 6) =?
(7y² + 2y +3) + (-4y² + y + 6)=?
(7y² + 2y +3) + (-4y² + y + 6)=
3y² + 3y - 9
