\(\Rightarrow x+2\sqrt{x\left(x+2\right)}+x+2=16\)
\(\Rightarrow2\sqrt{x^2+2x}=14-2x\)
\(\Rightarrow4\left(x^2+2x\right)=196-56x+4x^2\)
\(\Rightarrow4x^2+8x+56x-4x^2=196\)
\(\Rightarrow64x=196\Rightarrow x=\frac{49}{16}\)
chán phèo !!!! =.=
giải pt \(4\sqrt{x}-\sqrt{x-4}=x+4\)
\(\sqrt{3x}+\sqrt{x-2}=x+1\)
Giải PT :
\(\sqrt{x+y-4}+\sqrt{x-y+4}+\sqrt{-x+y+4}=\sqrt{x}+\sqrt{y}+2\)
Giải pt:
\(\sqrt{x^2+x+4}+\sqrt{x^2+x+1}=\sqrt{2x^2+2x+9}\)
giải pt sau
a)\(\sqrt{x^2-6x+9}=3\)
b)\(\sqrt{x+2\sqrt{x-1}}=2\)
c)\(\dfrac{\sqrt{5x-4}}{\sqrt{x+2}}=2\)
d)\(\sqrt{x-4}+\sqrt{x+1}=5\)
Help
GIẢI PT
\(\sqrt{x^2+10x+25}=4\)
\(\sqrt{x-2}+3=5\)
\(\sqrt{x^2-x+4}-x^2+x-2=0\)
\(\dfrac{\sqrt{x}-1}{\sqrt{x}+2}=\dfrac{1}{3}\)
giải pt
\(\sqrt{x^2}=x\)
\(\sqrt{x^2-4x+4}=x-2\)
Giải PT: \(\sqrt{x^2-4}\) + \(\sqrt{x+2}\) = 0
Giải PT:
\(\sqrt{x-2}+\sqrt{4-x}=x^2-6x+11\)
giải pt: \(\sqrt{3x^2-5x+1}-\sqrt{x^2-2}=\sqrt{3\left(x^2-x-1\right)}-\sqrt{x^2-3x+4}\)
Giải PT \(x+\sqrt{x^2-4}-\sqrt{x-\sqrt{x^2-4}}=3\)
