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(0.75)31-0.75+0.75+0.752+1 = ?

Correct Answer: 2

Explanation:

( 0 . 75 ) 3 1 - 0 . 75 + 0 . 75 + ( 0 . 75 ) 2 + 1 = ( 0 . 75 ) 3 + ( 1 - 0 . 75 ) ( 1 ) 2 + ( 0 . 75 ) 2 + 1 × 0 . 75 1 - 0 . 75  


 


 


( 0 . 75 ) 3 + ( 1 ) 3 - ( 0 . 75 ) 3 1 - 0 . 75   = 1 0 . 25 = 4 = 2


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