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Δ= 9
q= -9/2 = -4 1/2
f(x)= 1/2(x-9)^2 - 4 1/2 postać kanoniczna
f(x)= 1/2 (x+4)(x-2) postać iloczynowa
Postać kanoniczna:
p=-b/2a = -1/1= -1
Δ=b-4ac=1-4*(1/2)*(-4)=1+8=9
q=-Δ/4a= -9/2=-4,5
y=½(x+1)²-4,5
POstać ogólna:
√Δ=3
x₁=-b-Δ/2a = -1-3=-4
x₂=-b+Δ/2a = -1+3 = 2
y=½(x+4)(x-2)
f(x)=½(x+1)-9/2 p=-b/2a q=-Δ/4a Δ= b²-4*a*c
postać iloczynowa:
f(x)=(1/2x +2)(x-2) Δ= b²-4*a*c x₁=-b-√Δ/2a x₁=-b+√Δ/2a