1)вычислить:
779^3+3*779^2*221+3*779*221^2+221^3+10=?
2)преобразуйте в многочлен выражение:
-(u-3)(u-1)-(u-6)(u+6)=?
3)-x(x+2)-(x-7)(x^2+7x+49)=?
4)2(x-4)(x-3)-(x+6)^2=?
5)(u+2)^3-u(u+4)=?
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Answers & Comments
1) =(779+221)^3+10=1000000000+10=1000000010
2) =-u^2+u+3u-3-u^2+36=-2u^2+4u+33
3) =-x^2-2x-x^3+343
4) =2x^2-14x+24-x^2-12x-36=x^2-26x-12
5) =u^3+6u^2+12u+8-u^2-4u=u^3+5u^2+8u+8