Выражения 1)1000+a^6-(a^2+10)(a^4-10a^2+100) 2)(a^3-9)(a^6+9a^3+81)-a^9-729 3)0,512t^3-100+(0.8t+5)(0.64t^2-4t+25) 4)(1.1d-c^3)(1.21d^2+1.1c^3d+c^6)-1.331d^3+2c^9

Объяснение:

1) 1000+a⁶-(a²+10)(a⁴-10a²+100)=1000+a⁶-a⁶-1000=0

2) (a³-9)(a⁶+9a³+81)-a⁹-729=a⁹-729-a⁹-729=-1458

3) 0,512t³-100+(0,8t+5)(0,64t²-4t+25)=0,512t³-100+0,512t³+125=1,024t³+25

4) (1,1d-c³)(1,21d²+1,1c³d+c⁶)-1,331d³+2c⁹=1,331d³-c⁹-1,331d³+2c⁹=c⁹