Question

[nguyen hai]

giai cac phuong trinh sau 

a) x + 5 can x - 6 =0

b) x - can x + 1/4 = 0 

Answer 1

[Nguyễn Lê Phước Thịnh]

a: \(x+5\sqrt{x}-6=0\)

\(\Leftrightarrow\sqrt{x}-1=0\)

hay x=1

b: \(x-\sqrt{x}+\dfrac{1}{4}=0\)

\(\Leftrightarrow\sqrt{x}-\dfrac{1}{2}=0\)

hay \(x=\dfrac{1}{4}\)

Answer 2

[nguyen hai]

tim Gia Tri Nho Nhat cua A=x-4 can x+9