1. \[(m+n)^2 = m^2 + 2mn + n^2;\]
2. \[(p-g)^2 = p^2 - 2pg + g^2;\]
3. \[(2+a)^2 = 4 + 4a + a^2;\]
4. \[(3-b)^2 = 9 - 6b + b^2;\]
5. \[(x+5)^2 = x^2 + 10x + 25;\]
6. \[(3+c)^2 = 9 + 6c + c^2;\]
7. \[(a-4)^2 = a^2 - 8a + 16;\]
8. \[(3a-b)^2 = 9a^2 - 6ab + b^2;\]
9. \[(5x+t)^2 = 25x^2 + 10xt + t^2;\]
10. \[(5x-4b)^2 = 25x^2 - 40xb + 16b^2;\]
11. \[(6a-4b)^2 = 36a^2 - 48ab + 16b^2;\]
12. \[(a^2+b)^2 = a^4 + 2a^2b + b^2;\]
13. \[(c^3-1)^2 = c^6 - 2c^3 + 1;\]
14. \[(a^2+1)^2 = a^4 + 2a^2 + 1;\]
15. \[(x^2+y^2)^2 = x^4 + 2x^2y^2 + y^4;\]
16. \[(z^3-u^3)^2 = z^6 - 2z^3u^3 + u^6;\]
17. \[(2m^3+3n)^2 = 4m^6 + 12m^3n + 9n^2;\]
18. \[\left(a-\frac{1}{2}\right)^2 = a^2 - a + \frac{1}{4};\]
19. \[\left(b+\frac{1}{3}\right)^2 = b^2 + \frac{2}{3}b + \frac{1}{9};\]
20. \[\left(\frac{x}{2} - \frac{y}{3}\right)^2 = \frac{x^2}{4} - \frac{xy}{3} + \frac{y^2}{9};\]
21. \[\left(\frac{a}{4} + \frac{b}{3}\right)^2 = \frac{a^2}{16} + \frac{ab}{6} + \frac{b^2}{9};\]
22. \[\left(\frac{2}{3}m + \frac{1}{2}n\right)^2 = \frac{4}{9}m^2 + \frac{1}{3}mn + \frac{1}{4}n^2;\]
24. \[(0.5b - 0.4c)^2 = 0.25b^2 - 0.4bc + 0.16c^2;\]