1 >Tim GTNN cua :
A = \(\frac{2x^2-16x+43}{x^2-8x+22}\)
Tim gtnn cua da thuc
Cau 1 M bằng x mũ 2 trừ 8x cộng 5
Cau 2 F bang 2x mũ 2 cộng 6x trừ 4
Tim gtln cua da thúc
Cau 1 7 - x - x mũ 2
Cau 2 ( 1- 2x ) nhân (x-3)
tim GTNN cua cac bieu thuc
a)2x\(^2\)+8x+1
b)2x\(^2\)+3x+1
Tim GTNN cua \(\frac{8x^2+2}{x}\)
Tim GTNN cua bieu thuc
A= \({2x^2+3y^2+4xy-8x-2y+18}\)
Tim GTNN: A=4-x^2 + 2x
2x2+x+1 Tim GTNN
Tim GTNN cua bieu thuc
\(M=\frac{x^4+x^2+5}{x^4+2x^2+1}\)
Tim gtnn cua 2x/(x-1)^2 khi x>1
