Question

-a-[a+{a+b-2a-(a-2b)}-b]​

Answer 1

Answer:

-a square

Step-by-step explanation:

given in the photo

Answer 2

Answer:

-2b

Step-by-step explanation:

-a-[a+{a+b-2a-(a-2b)}-b]

-a-[a+{a+b-2a-a+2b}-b]

-a-[a+{-2a+3b}-b]

-a-[a-2a+3b-b]

-a-[-a+2b]

-a+a-2b

-2b .

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