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2x²-4x+3
a=2 b= -4 c=3
Vh(coordenada en x)
-b ......-(-4) .......4 =1
2a 2(2) 4
h=1
Vk(coordenada en y)
4ac-b².....4(2)(3)-(-4)² ...........24-16 ........8 =1
4a 4(2) 8 8
k=1
las coordenadas del vertice son (1,1)
te adjunto la grafica..