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b)
c)
d)
e)
f)
y=(x-1/2)²+4=x²-x+1/4+4
y=x²-x+4,25
b)
y=-(x²-8x+16)-3=-x²+8x-16-3
y=-x²+8x-19
c)
y=2(x²-6x+9)+1
y=2x²-12x+19
d)
y=-3(x²+4x+4)-4=-3x²-12x-12-4
y=-3x²-12-16
e)
y=-1/2(x²-4x+4)+2=-1/2x²+2x-2+2
y=-1/2x²+2x
f)
y=-1/3(x²-6x+9)+4=-1/3x²+2x-3+4
y=-1/3x²+2x+1