Question

Solve the following (a - 3b) + (a +3b)​

Answer 1

Step-by-step explanation:

(a-3b) (a+3b) = a2 -3b2

a2-9b2

Answer 2

Answer:

2a

Step-by-step explanation:

a-3b+a+3b

a+a-3b+3b

-3b+3b=0

a+a

a+a=2a

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