Question

* - (3х² - 4ху + 2у²)=9х² + у²​

Answer 1

Ответ:

-3x²+4xy-2y²=9x²+y²

-3x²-9x²=y²+2y²-4xy

-12x²=3y²-xy

Answer 2

* = 9х² + у² + 3х² - 4ху + 2у² = 12х² - 4xy + 3у²