разложите многочлен на множители:
1) a(3+b)+b+3
2) x(y-z)-(z-y)
3а+ab+b+3=3(a+1)+b(a+1)=(a+1)*(3+b)
xy-xz-z+y=y(x+1)-z(x+1)=(x+1)*(y-z)
a*(3+b)+(b+3)=(3+b)*(a+1)
x*(y-z) - (z-y)=x*(y-z)+(y-z)=(y-z)*(x+1)
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Answers & Comments
1) a(3+b)+b+3
3а+ab+b+3=3(a+1)+b(a+1)=(a+1)*(3+b)
2) x(y-z)-(z-y)
xy-xz-z+y=y(x+1)-z(x+1)=(x+1)*(y-z)
a*(3+b)+(b+3)=(3+b)*(a+1)
x*(y-z) - (z-y)=x*(y-z)+(y-z)=(y-z)*(x+1)