Find all values of x and y such that Px(x,y) = 0 and Py(x,y) = 0 simultaneously. P(x,y) = 5x²2 - 10xy+3y² + 10x + 18y-4 Px(x,y) = 0 and Py(x,y)=0 when x = and y= 0.

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