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Monday, September 21, 2015

Fractionmia

Problem:



Solution:

1x+11x+11x11x1=1x+x1+x1xx1x=1+x+x2x(1+x)1xx2x(1x)=1+x+x21+x1xx21x=(1+x+x2)(1x)(1xx2)(1+x)

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