Упростите у(3у+16х)-(-8х-у)²

Question

Упростите у(3у+16х)-(-8х-у)²

Answer 1

3у² + 16ху -  64х² -8ху -у²- 8ху = 2у² -64х²

Answer 2

Y(3y+16x)-(-8x-y)^2=3y^2+16xy+16x^2+y^2=4y^2+16xy+16x^2