1). (0,2+5y)^3-(0,5+2y)^3-6y^2 при y=-1/2 2) (10a^3+1/3b^2)^3 3) (0,3x^5+0,5y^2)^3 4) x^3 y^3+6x^2 y^2+12xy+8 5) (x+2)^3-(x-1)^3=9x2+36

2)(10a^3+1/3 b^2)^3=1000a^9+100a^6b^2+10/3^3b^4+1/27 b^6
3)(0.3x^5+0.5y^2)^3 =0.027x^15+0.135x^10y^2+0.225x^5y^4+0.125y^6
4) x³y³+6x²y²+12xy+8=(xy+2)³