Question

8a-6a

9ab -15ab

2a-2a

14xy+32xy

46x3y-51x3y

-15xy+40xy

x2y+x2y

7x2y+7x2y

502ab-405ab

-15ab+15ab

3 cuartos a -un medio a

Answer 1

1)8a-6a= 2a

2) 9ab-15ab= -6ab

3) 2a-2a= 0

4) 14xy+32xy= 46xy

5) 46x3y-51x3y

=46x×3y-51x×3y

=138xy-153xy

=-15xy

6)-15xy+40xy= 25xy

7) x2y+x2y

=x×2y+x×2y

=2xy+2xy

=4xy

8) 7x2y+7x2y

=7x×2y+7x×2y

=14xy+14xy

=28xy

9) 502ab-405ab= 97ab

10) -15ab+15ab= 0

11)3/4a-1/2a

=3a/4-a/2

=3a/4-2a/2×2

=3a/4-2a/4

=3a-2a/4

=a/4 o 1/4a