Question

1. (2-х)(2+х)=
2. (х-у)(х+у)=
3. (2х+1)(1-2х)=
4. (2х-у)(2х+у)=
5. (2х+3у)(3у-2х)=
6. (х^2-2)(2+х^2)=
7. (3х^2-0,2у^2)(0,2у^2+3х^2)=
8. ( 2/3х^3+1/2у)(1/2у-2/3х^3)=​

Answer 1

1. 4 - x²

2. x² - y²

3. –4x² + 1

4. 4x² - y²

5. –4x² + 9y²

6. 4x² - 4

7. 36x² - 0,16y²

8. –4x² + y²/4

Answer 2

1)4-х²

2)х²-у²

3)-4х+1

4)4х²-у²

5)-20х²+45у²

6)х⁴-4

7)9х⁴-0,04у⁴

8)(4х³+3у)(-4х³+3у)/36

-4х⁶/9+у²/4