Evaluate 2 ( ( 2 2 2 ) ( 2 ( 2 2 ) + 2 ( 2 2 ) ) − ( 2 2 ( 2 ( 2 2 ) + 2 ( 2 2 ) ) ) ( 2 ( 2 ) ( 2 ) ( 2 ) + 2 + 2 ( 2 ) ( 2 ) + 2 + 2 2 + 2 ( 2 ) ( 2 ) + 2 + 2 2 + 2 + 2 ) 2 ( 2 2 ) ( 2 + 2 ) ( 2 2 2 − 2 2 ) ( 2 2 2 2 + 2 2 2 + 2 2 + 2 )
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Evaluating 2 ( ( 2 2 2 ) ( 2 ( 2 2 ) + 2 ( 2 2 ) ) − ( 2 2 ( 2 ( 2 2 ) + 2 ( 2 2 ) ) ) ( 2 ( 2 ) ( 2 ) ( 2 ) + 2 + 2 ( 2 ) ( 2 ) + 2 + 2 2 + 2 ( 2 ) ( 2 ) + 2 + 2 2 + 2 + 2 ) 2 ( 2 2 ) ( 2 + 2 ) ( 2 2 2 − 2 2 ) ( 2 2 2 2 + 2 2 2 + 2 2 + 2 )
( 2 2 ) ( 2 + 2 ) ( 2 2 2 − 2 2 ) is equivilient to ( 2 2 2 ) ( 2 ( 2 2 ) + 2 ( 2 2 ) ) − 2 2 ( 2 ( 2 2 ) + 2 ( 2 2 ) ) after factoring
Canceling them out, we have
2 ( 2 ( 2 ) ( 2 ) ( 2 ) + 2 + 2 ( 2 ) ( 2 ) + 2 + 2 2 + 2 ( 2 ) ( 2 ) + 2 + 2 2 + 2 + 2 ) 2 ( 2 2 2 2 + 2 2 2 + 2 2 + 2 )
= 2 ( 2 1 0 + 2 7 + 2 6 + 2 4 + 2 ) 2 ( 2 4 6 8 )
= 2 1 2 3 4 2 ( 2 4 6 8 )
= 2 1 2 3 4 4 ( 1 2 3 4 )
= 2 4
= 2 just as you guessed.