If the points (x,y) is equidistant from the points (a-b, a+b) and (-a-b, a+b), prove that x-a=0

If the points (x,y) is equidistant from the points (a-b, a+b) and (-a-

1.	If the points (x,y) is equidistant from the points (a-b, a+b) and (-a-b, a+b), prove that x-a=0
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