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x-x²-2=0
x²=x+2
x=√x+2
maaf kalau salah
y=-x+2
x^2=-x=2
x^2=x-2=0
x= (-1± √1^2-4x1x(-2))/(2x1)
x= (-1+3)/2
x= (-1-3)/2
x=1
x=2
y=1+2
y=-(-2)+2
y=1
y=4
(x1,y1)=(1,1)
(x2,y2)=(-2,4)