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b)f(x)=(4-x)(6+x)
a) -2(x²+2x-3) = -2x²-4x+6
a=-2
p=-b/2a=4/-4=-1
Δ=16+4*2*6=16+48=64
q=-Δ/4a=-64/-8=8
postac kanoniczna -2(x+1)²+8
b)f(x)=(4-x)(6+x)
-x²-6x+4x+24=-x²-2x+24
a=-1
p=2/-2=1
Δ=4+4*24=100
q=-100/-4=25
-1(x-1)²+25