Ответ:
a)=x^4×(4+x)
b)=a+(b-c)+2+(b-c)=(a+2)×(b-c)
г)=5^2а^2-2×5а×3б+3^2б^2=(5а)^2-2×5а×3б+(3б)^2=(5а-3б)^2
в)=3^2m^2-4^2n^2=(3m)^2-(4n)^2=(3m-4n)(3m+4n)
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Ответ:
a)=x^4×(4+x)
b)=a+(b-c)+2+(b-c)=(a+2)×(b-c)
г)=5^2а^2-2×5а×3б+3^2б^2=(5а)^2-2×5а×3б+(3б)^2=(5а-3б)^2
в)=3^2m^2-4^2n^2=(3m)^2-(4n)^2=(3m-4n)(3m+4n)