Question

Упростите:

а) 3a^2b-ab^2-a^2b+2ab^2

б) mn-7mn^2-mn-7mn^2

в) 10xy^2-10xy+x^2y

г) 5xz^2-4x^2z+xz-5xz^2

Answer 1

1) ab(3a-b-a+2b) = ab(2a+b)

2)mn(1-7n-1-7n) = -14mn^2

3) xy(10y-10+y) = xy(11y-10)

4)xz(5z-4x+1-5z) = xz(1-4x)