If (x+2) ²+ (y-2)² =0 then x+y = what ?
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Answer:
(x - 2)²+ (y-3)² = 0
sum of squares of two number is possible if both are 0
so x-2=0
x=2 and y-3=0
y=3
so x+y=2+3=5
x+y=5
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