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1/2x +y+2=0
y=-1/2x-2
x²+(-1/2x-2)²+8x+4(-1/2x-2)+19=0
x²+1/4x²+2x+4+8x-2x-8+19=0
5/4x²+8x+15=0
liczymy deltę
Δ=b²-4ac=64-75=-9
Δ<0 więc układ nie ma rozwiązania