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If x+y =8 and x^2+y^2=36 find x-y
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If x+y =8 and x^2+y^2=36 find x-y

User Pietz
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(x + y)(x - y) = x^2 + y^2

8 (x - y) = 36

x - y = 36 / 8 = 4.5



User Gaui
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