Question

7ab,8ab,-10ab,-2ab add by horizontal. method​

Answer 1

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Answer 2

Step-by-step explanation:

Hi,

7ab , 8ab , -10ab , -2ab

Arrange 7ab and 8ab horizontally , after that add them.

7ab

8ab

--------

15ab

Again arrange -10ab and -2ab horizontally , and then add them.

-10ab

-2ab

-------

-12ab

Now, add 12ab and -12ab ,

------12ab

(+) -12ab

--------

0

!! Hope it helps !!