Eightcord Eightcord

04-01-2020
Mathematics

contestada

Find the sum and the difference of the following expressions.

a-b and a+b

The sum is_, The difference is_.

Respuesta :

princessbriannasu princessbriannasu

04-01-2020

Answer:

sum=2a

diff.=-2b

Step-by-step explanation:

a-b+a+b=

2a

a-b-a-b=-2b

Answer Link

fhope12 fhope12

04-01-2020

Sum :
a-b+(a+b)
a+a-b+b=2a

Difference:
a-b-(a+b)
a-b-a-b
-2b

Answer Link

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