Ответы и объяснения

2013-03-22T11:00:30+04:00

a)2ab(ab-3b^+a^)   б)a^(a-2)-a(a-2)-a(a-2)=(a-2)(a^-2a)    b)(3x-xy)-(3y-y^)=x(3-y)-y(3-y)=(x-y)(3-y) г)(ax-ay)-(cx-cy)+(x-y)=a(x-y)-c(x-y)+(x-y)=(a-c+1)(x-y)

2013-03-22T15:52:31+04:00

a)2ab(ab-3b^+a^) б)a^(a-2)-a(a-2)-a(a-2)=(a-2)(a^-2a) b)(3x-xy)-(3y-y^)=x(3-y)-y(3-y)=(x-y)(3-y) г)(ax-ay)-(cx-cy)+(x-y)=a(x-y)-c(x-y)+(x-y)=(a-c+1)(x-y)