(x+Y) : (x-y)=4:1 so
(x2+y2) : (x2-y2)=?

Question

(x+Y) : (x-y)=4:1  so
(x2+y2) : (x2-y2)=?

owlfred · Answer

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anonymous · Answer

u hav x+y=4 and x-y=1 so u get x=2.5 and y=1.5...now substitute and so find the ratio...

anonymous · Answer

yeh I think u did something wrong lols

anonymous · Answer

because you square it

anonymous · Answer

you cant just pick the top to be 4 and bottom to be 1

anonymous · Answer

@elecengineer....yes but ultimately ur taking ratio again so it doesn't matter!

anonymous · Answer

yeah i thought there was something wrong but brackett is right.  why would i doubt you!  since you are taking ratios again you pick any numbers that work

anonymous · Answer

yeh I just tried it with differerent values for x+y and x-y

anonymous · Answer

seemed a little strange , because the ratio of the sum of the single terms  are different to the ratio of the sum of sqaures

anonymous · Answer

yeah i thought that was the gimmick but it doesn't matter