8) 1. =(m-n) (m^2+mn+n^2)
2.=(c+2)(c^2+2c+4)
3.=(3a-b) (9a^2+3ab+b^2)
4.=(5+ab)(25+5ab+a^2b^2)
5.=(x^2-y^3)(x^4+x^2y^3+y^6)
6.=a^9b^3(10a+0.1b^4)(100a^2-1ab^4+0,01b^8)
9) 1.=11(m-1)(m+1)
2.=6a(a-1)(a+1)
3.=5x(x-y)(x+y)
4.=8a^2(b-3c)(b+3c)
5.=2(x^2+6xy+36y^2)
6.=-2a(2a-1)^2
7.=5(a-2b)(a^2+2ab^2+4b^4)
8.=a(a-d) (a+1)
9=(a-3b)(1+a+3b)
10.=c^2(a-1)(c-1)(c+1)