Question

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

Answer 1

$\textbf{Your answer }$ !!

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$a - [ a + a - a - 2 + 2 ] = 0 \\ \\ a - a + a - a - 2 + 2 = 0 \\ \\ 0 = 0$

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Answer 2

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

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

= a - [ a + ( -2 ) + 2 ]

= a - a

= 0

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