tim gtnn cua \(\sqrt{x^2+2x+1}+\sqrt{x^2-2x+1}\)
P(x)=2x^4+(m+n).x^3-(2m-3n-2)x^2+2x+1 Tim cac gia tri cua m,n sao cho P(x) chia het cho (2x+1) va chia(x-1) du 12
tim mim Q= (x^2+2x+17) /(2*(x+1))
Voi x>=-2.Tim GTNN cua bieu thuc N=x^2+2x+1/(x+2)
tim gtln \(\dfrac{2\sqrt{x}}{2x+1}\)
tim nghiem nguyen cua phuong trinh: \(\left(x^2+1\right)\sqrt{1-x}-\left(2x+x^3\right)\sqrt{x+1}=3x^4\sqrt{2x}\)
Tim mi va max cua bieu thuc A=( x^2 - 2x+2)/(x^2 + 2x+2)
tim min y= (x^4+x^2+5)/(x^4+2x+1)
tim x biet
căn (x+2 căn(2x-4))=căn (2) -1