Равен x^4-x³+x²+x|3-(-2)=81-27+9+3-16-8-4+2=40
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все по формуле F(x^n)=x^(n+1)/(n+1)
1)3с+3с^2-a-ac=3c(1+c)-a(1+c)=(3c-a)(1+c)
2)a^2b^2+ab+abc+c=ab(ab+1)+c(ab+1)=(ab+c)(ab+1)
9m^3 + 3m^2n + 3mn^2 + n^3 = 3m^2( 3m + n ) + n^2( 3m + n ) =
= ( 3m + n )( 3m^2 + n^2 )