\(\sqrt{x+3}+2\sqrt{4x+12}-\frac{1}{3}\sqrt{9x+27}=8\)
\(\sqrt{4x^2-4x+1}=\sqrt{x^2+10x+25}\)
Giải pt
Giải các pt sau ( tìm ĐK)
a)\(4\sqrt{x-5}-\sqrt{4x-20}+\sqrt{16x-80}=2\)\(=2\)
b) \(2\sqrt{x-1}+\sqrt{4x-4}-\sqrt{9x-9}=2\)
c)\(-\sqrt{x+2}-\sqrt{4x+8}-\sqrt{9x+18}=-\sqrt{x+5}\)
a) \(\sqrt{4x^2-9}=2\sqrt{x+3}\)
b) \(\sqrt{4x+20}+3\sqrt{\dfrac{x-5}{9}}-\dfrac{1}{3}\sqrt{9x-45}=4\)
c) \(\dfrac{2}{3}\sqrt{9x-9}-\dfrac{1}{4}\sqrt{16x-16}+27\sqrt{\dfrac{x-1}{81}}=4\)
d)\(5\sqrt{\dfrac{9x-27}{25}}-7\sqrt{\dfrac{4x-12}{9}}-7\sqrt{x^2-9}+18\sqrt{\dfrac{9x^2-81}{81}}=0\)
GIẢI PHƯƠNG TRÌNH
a) \(\dfrac{1}{3}\sqrt{x-2}-\dfrac{2}{3}\sqrt{9x-18}+6\sqrt{\dfrac{x-2}{81}}=-4\)
b) \(\sqrt{9x^2+12x+4}=4x\)
c) \(\sqrt{9x-18}-\sqrt{4x-8}+3\sqrt{x-2}=40\)
d) \(\sqrt{5x-6}-3=0\)
Giải phương trình và bất phương trình:
a) \(\sqrt{4x-12}-\sqrt{9x-27}+\sqrt{\dfrac{25x-75}{4}-3=0}\)
b) \(\dfrac{\sqrt{x}-2}{\sqrt{x}+1}\) ≤ \(\dfrac{-3}{4}\)
c) \(\sqrt{9x-45}-14\sqrt{\dfrac{x-5}{49}}+\dfrac{1}{4}\sqrt{4x-20}=3\)
giải pt:
a) \(\frac{5\sqrt{x}-2}{8\sqrt{x}+2,5}=\frac{2}{7}\)
b)\(\sqrt{9x^2+12x+4}=4\)
c)\(\sqrt{3-x}-\sqrt{27-9x}+1,25\sqrt{48-16x}-6=0\)
d)\(\sqrt{x^2-10x+25}=2x+2\)
Giải PT
\(\sqrt{4x-20}-3\sqrt{\frac{x-5}{9}}=\sqrt{1-x}\)
\(\sqrt{4x+8}+2\sqrt{x+2}-\sqrt{9x+18}=1\)
\(\sqrt{3x^2-4x+3}=1-2x\)
\(\sqrt{16\left(x+1\right)}-\sqrt{9\left(x+1\right)}=4\)
giải pt:
a) \(4\sqrt{x-2}+\sqrt{9x-18}-\sqrt{\dfrac{x-2}{4}}=26\)
b) \(3x+\sqrt{4x^2-8x+4}=1\)
c) \(\left(2\sqrt{x}+1\right)\left(\sqrt{x}-2\right)=7\)
giúp mk vs ạ mk cần gấp
Giải pt: \(a,\sqrt{2x+4}-2\sqrt{2-x}=\frac{12x-8}{\sqrt{9x^2+16}}\)
\(b,\sqrt{4x^2+5x+1}-2\sqrt{x^2-x+1}=9x-3\)
\(c,2x^2-11x+21-3\sqrt[3]{4x-4}=0\)
Ai bt lm phần nào thì giúp vs nhé ^^