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Simplify 1.53 + 4.73 + 3.83 - 3 x 1.5 x 4.7 x 3.81.52 + 4.72 + 3.82 - 1.5 x 4.7 - 4.7 x 3.8 - 1.5 x 3.8

Correct Answer: 10

Explanation:

Apply  a 3   +   b 3   +   c 3   -   3 a b c a 2   +   b 2   +   c 2   -   a b   -   b c   -   c a   =   a   +   b   +   c


 


Hence the answer is  1.5 + 4.7 + 3.8 = 10.


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