giai phuong trinh
\(\sqrt{x-1}-\sqrt{5x-1}=\sqrt{3x-2}\)
\(\sqrt{x+2+3\sqrt{ }2x-5}+\sqrt{x-2-\sqrt{ }2x-5}=2\sqrt{2}\) 2\(\sqrt{2}\) giai phuong trinh
\(\sqrt{x+5}\)= 1+\(\sqrt{x}\)
Giai phuong trinh tren.
giai phuong trinh
\(x+\frac{1}{x}=1+\sqrt{6}\)
Giai phuong trinh sau:
\(\sqrt{x^2-6x+9}+\sqrt{x^2+10x+25}=8\)
cho phuong trinh (an x):(m-1)x +m^2 -1=0(1) a,giai phuong trinh (1) voi m=2 b, tim gia tri cua m sao cho phuong trinh (1) nhan x=3 lam nghiem
mk dang can gap .cam on truoc a
giai phuong trinh 1/4(x+3)=3-1/2(x+1)-1/3(x+2)
giai phuong trinh (x-1)(x-4) + (x-3)(x-2)=2
giai phuong trinh :
(x^2+x+1)^2=3(x^4+x^2+1)
cho phuong trinh :3/x=2/x-1
a) tìm điều kiện xác đjnh
b) giai phuong trinh