SOLUTION: Write the resulting polynomial in standard form. (x+y+1)(x+y-1)

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Question 348034: Write the resulting polynomial in standard form. (x+y+1)(x+y-1)
Answer by solver91311(24713) About Me  (Show Source):
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The quick and easy way to do this one is to recognize that you have a pair of conjugates if you consider as a single term and 1 as the other term.



Then expand the binomial to get:




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