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tim GTLN hoac GTNN cua bthuc
a) A=x2-6x+11
B=2x2+10x-1
c) 5x-x2
1 tim gtln hoac gtnn cua bt
B=x2-4xy+5y2+10x-22y+28
tim GTLN hoac GTNN cua bieu thuc C= -x2+6x+1
tim GTLN hoac GTNN cua bieu thuc D= -3x2 +12x+11
tim GTLN hoac GTNN cua bieu thuc B= -x2-8x+5
Tim gtln hoac gtnn cua bt
A=27-12x/x^2+5
tim gtln hoac gtnn cua biet thuc
C= -x2-2x+5-y2+4y
tim gtln hoac gtnn cua bieu thuc
A=x2-x
lm on giup minh nha
tim gtln cua bieu thuc
B= 5x2-10x+(y+2017)-4
