5a+10ab-25ab-15ab 2) 2x-6xy-6xy+8xy 3)3x+6xy-15xy-9xy 4)-6am+9m-12m-3am плиз помагите!!!

Question

5a+10ab-25ab-15ab

2) 2x-6xy-6xy+8xy

3)3x+6xy-15xy-9xy

4)-6am+9m-12m-3am плиз помагите!!!

Answer 1

1) 5a+10ab-25ab-15ab=5a-30ab

2)2x-6xy-6xy+8xy=2x-8xy

3) 3x+6xy-15xy-9xy=3x-18xy

4) -6am+9m-12m-3am=9m-21am

Answer 2

1) 5а(1+2b-5b-3b) = 5a(1-6b)

2) 2x(1-3y-3y+4y) = 2x(1-2y)

3) 3x(1+2y-5y-3y) = 3x(1-6y)

4) -3m(2a-3+4+a) = -3m(3a+1)