1) a²+ 2/14
Объяснение:
1) ( a + 1/7 )² = a² + 2/7 a + 2/14
2) (1/9 + b)² = 1/ 81 + 2/9b + b²
3) ( n/4 + m/3)² = n²/16 + 2nm/12 + m²/9
4) (h/2 - t/5) ² = h²/4 - 2ht/10 + t²/25
5) ( 4 1/3 - x)²= 169/ 9 - 26/6x + x²
6) (y + 3 1/4)²= y² + 26/8y + 169/ 16
7) ( z - 5 1/5)² = z² - 52/10z + 676/25
8) (4 1/2 + t)² = 81/4 + 18/4t + t²
