Problema Solution
If 2x-3x=1 and 3x-4y=1 then x2+y2 equal to which of the following... A.0,B.1,C.-1,D.2
Answer provided by our tutors
2x-3x=1 => x =-1
3x-4y=1 <=>4y=3x-1 = 3(-1) - 1= -4
=> y =-1
Therefore,
x^2+y^2 = (-1)^2+(-1)^2= 2
D
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