1)6,4² - 4,4²; 2)(3,9 - 2,5)²; 3)(3,9+2,5)²; 4)(6,4 - 4,4)(6,4+4,4); 5)3,9²-2×3,9×2,5+2,5²; 6)3,9² +2×3,9×2,5+2,5². Created by juliadedust. matematika-ru

1)6,4² - 4,4²; 2)(3,9 - 2,5)²; 3)(3,9+2,5)²; 4)(6,4

August 2022 2 11 Report

1)6,4² - 4,4²;
2)(3,9 - 2,5)²;
3)(3,9+2,5)²;
4)(6,4 - 4,4)(6,4+4,4);
5)3,9²-2×3,9×2,5+2,5²;
6)3,9² +2×3,9×2,5+2,5²

Nastya171167 6,4² - 4,4² = 6,4*6,4 - 4,4*4,4=40,96 - 19,36 = 21,6
(3,9 - 2,5)² =1,4*1,4=1,96
3,9² - 2 * 3,9 *2,5 + 2,5² =3,9*3,9-23,9*2,5+2,5*2,5=15,21-2*3,9*2,5+6,25=15,21-7,8*2,5+6,25=15,21-19,5+6,25=-4,29+6,25=1,96

3 votes Thanks 3

Анюта701 6,4² - 4,4² = 6,4*6,4 - 4,4*4,4=40,96 - 19,36 = 21,6
(3,9 - 2,5)² =1,4*1,4=1,96
3,9² - 2 * 3,9 *2,5 + 2,5² =3,9*3,9-23,9*2,5+2,5*2,5=15,21-2*3,9*2,5+6,25=15,21-7,8*2,5+6,25=15,21-19,5+6,25=-4,29+6,25=1,96

3 votes Thanks 2

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