Przekształć do postaci ogolnej y = -2/3 (x+9) (x-1)
y= 2(x-3)(x+1)=2(x²+x-3x-3)=2x²-4x-6 postać ogólna
p=-b/2a=4/4=1
Δ=16-4*2*(-6)=16+48=64
q=-Δ/4a=-64/4*2=-64/8=-8
y=-2/3(x²-x+9x-9)
y=-2/3x²+2/3x -6x+6
y=-2/3x²-4x+6
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y= 2(x-3)(x+1)=2(x²+x-3x-3)=2x²-4x-6 postać ogólna
p=-b/2a=4/4=1
Δ=16-4*2*(-6)=16+48=64
q=-Δ/4a=-64/4*2=-64/8=-8
y=-2/3(x²-x+9x-9)
y=-2/3x²+2/3x -6x+6
y=-2/3x²-4x+6