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jpv05

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jpv05

What Does This Sentence In A Textbook Called 'sciencia' Mean? (See Below, Picture Of Book's Pages Attached With Doubts)?

1st paragraph all the way up to c2 : what is the squares in this sentence? I put question marks in my confusions. the two 'paragraphs' or 'whatever' I boxed are both messed up, like its both confusing...
05:47 Mon 21st Jul 201417 answers, last by factor-fiction 10:32 Sat 09th Aug 2014

Only 1 question