what is the factor of 1-x²
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the factor of 1-x² is (x+1•(1-x)
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Answer:
1 - x² = 0
( 1 )² - x² = 0
( 1 + x ) ( 1 - x ) = 0
=> 1 + x = 0 & 1 - x = 0
=> x = - 1 & x = 1
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