giai phuong trinh
\(x\left(\frac{5-x}{x+1}\right)\left(x+\frac{5-x}{x+1}\right)=\)\(6\)
cho phuong trinh an x: \(\frac{x+a}{x+2}+\frac{x-2}{x-a}=2\)
a) giai phuong trinh vs a=4
b)Tim cac gtri cua a sao cho phuong trinh nhan x=-1 lam nghiem
giai phuong trinh
\(\sqrt{x-1}-\sqrt{5x-1}=\sqrt{3x-2}\)
Giai phuong trinh :\(\frac{x-3}{11}+\frac{x+1}{3}=\frac{x+7}{9}-1\)
Giai phuong trinh sau: \(\frac{x^2+2x+2}{x+1}+\frac{x^2+8x+20}{x+4}=\frac{x^2+4x+6}{x+2}+\frac{x^2+6x+12}{x+3}\)
giai phuong trinh\(\frac{1}{x+1}-\frac{5}{x-2}=\frac{15}{\left(x+1\right)\left(x-2\right)}\)
\(\sqrt{x+5}\)= 1+\(\sqrt{x}\)
Giai phuong trinh tren.
Cho\(\frac{x^2+1}{x}+\frac{x}{x^2+1}=\frac{5}{2}\)
hay giai phuong trinh tren
\(\frac{\left(x-2\right)^2}{3}-\frac{2x-1}{4}=4-\frac{\left(2x-3\right)^2}{6}\)
Giai phuong trinh
