1. (а+1/7)^2 = a^2 + 2/7 * a + 1/49
2. (1/9 + b)^2 = 1/81 + 2/9 * b + b^2
3. (n/4 + m/3)^2 = n^2/16 + (n*m/6) + m^2/9
4. (k/2 - t/5)^2 = k^2/4 - k*t/5 + t^2/25
5. (13/3 - x)^2 = 169/9 - 26/3*x + x^2
6. (y + 13/4)^2 = y^2 + 13/2*y + 169/16
7. (z-26/5)^2 = z^2 - 102*z/5 + 676/25
8. (9/2 + t)^2 = 81/4 + 9*t + t^2
1. (а+1/7)^2 = a^2 + 2/7 * a + 1/49
2. (1/9 + b)^2 = 1/81 + 2/9 * b + b^2
3. (n/4 + m/3)^2 = n^2/16 + (n*m/6) + m^2/9
4. (k/2 - t/5)^2 = k^2/4 - k*t/5 + t^2/25
5. (13/3 - x)^2 = 169/9 - 26/3*x + x^2
6. (y + 13/4)^2 = y^2 + 13/2*y + 169/16
7. (z-26/5)^2 = z^2 - 102*z/5 + 676/25
8. (9/2 + t)^2 = 81/4 + 9*t + t^2