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Simplify (1+23)2(123)2...

Simplify (1+23)2(123)2

A.

0

B.

83

C.

13

D.

243

Correct answer is B

(1+23)2=1+43+12=13+43

(123)2=143+12=1343

13+43(1343)=13+4313+43

= 83