Question

please solve it please please ​

Answer 1

Answer:

Simple just subtract the two sides from the perimeter and you get the third side.

>> 11y² - 9y + 13 - (4y² - 3y - 7 + 5y² - 4y + 6)

= 11y² - 9y + 13 - (9y² - 7y - 1)

= 11y² - 9y + 13 - 9y² + 7y + 1

= 2y² - 2y + 14

= 2(y² - y + 7)

Third side = 2(y² - y + 7)

Answer 2

Step-by-step explanation:

HOPE IT HELPS YOU MATE.