Find the diffrence between the points (a,b) (-a,-b)

1.	Find the diffrence between the points (a,b) (-a,-b)
Answer» Difference\xa0between\xa0(a,b)\xa0and\xa0(-a,-b)=-a-a2+-b-b2=-2a2+-2b2=4a2+4b2=4(a2+b2)=2a2+b2

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