Виконайте дії
1. (a-5)(a^2+25)(a+5)
2. (1+a^5)(-1-a^5)
3. (0.6a^12−0.5b^7)(0.6a^12+0.5b^7)
4. (-3a-4b)^2
5. (-a^10+1)(a^10+1)
[tex]6. (\frac{2}{3} a^{2} -\frac{1}{5}b)(\frac{4}{9}a^{4}+\frac{2}{15}a^{2}b+\frac{1}{25}b^{2})[/tex]
7. (a+3b+1)(a+3b-1)
8. (a^12-4b^3)^2
