Question

1) -x+2x+(-6)+x-4=

2) 2ab-b-ab-(-3)=

3) 3x(do kwadratu)-2y(do kwadratu)-6x(do kwadratu)-2y(do kwadratu)=

4) 3,5b-2,4c-o,6c-0,6b=

5) 3x(do kwadratu)-2x+1+x-4x(do kwadratu)-2 =

6) 2m(do kwadratu)+3mn-n+mn+3n-m(do kwadratu)

Answer 1

1.

-x+2x+(-6)+x-4=2x-10

2.

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

3.

3x²-2y²-6x²-2y²=-3x²-4y²

4.

3,5b-2,4c-0,6c-0,6b=2,9b-3c

5.

3x²-2x+1+x-4x²-2=-x²-x-1

6.

2m²+3mn-n+mn+3n-m²=m²+4mn+2n