tiya57
tiya57
03-05-2019
Mathematics
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( 1-x2) ( 1-y2) + 4xy
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LittleBelle
LittleBelle
03-05-2019
It’s 1-2y-2x+8xy hope this helps
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lenae15
lenae15
03-05-2019
If we simplify, the answer would be x^2 y^2-x^2 + 4xy - y^2 + 1
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