3 years ago

Find the sum and the difference of the following expressions.

Mathematics

2 answers:

trasher [3.6K]3 years ago

8 0

Answer:

sum=2a

diff.=-2b

Step-by-step explanation:

a-b+a+b=

a-b-a-b=-2b

qwelly [4]3 years ago

6 0

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

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

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