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giải hpt
\(\hept{\begin{cases}\left(1-y\right)\sqrt{x-y}+x=2+\left(x-y-1\right)\sqrt{y}\\2y^2-3x+6y+1=2\sqrt{x-2y}-\sqrt{4x-5y-3}\end{cases}}\)
căn 4x-5y - 3 nha
help me
#mã mã#
Giải pt: \(x+\sqrt[3]{x^3-x^2}+\sqrt[3]{x^3-x}=\sqrt[3]{x^2+x+\frac{1}{3}}+\sqrt[3]{x^2+\frac{1}{3}}+\sqrt[3]{x+\frac{1}{3}}\)
Giải pt:
\(\sqrt{x^2+10x+21}=3\sqrt{x+3}+2\sqrt{x+7}-6\)
\(4\left(x+1\right)^2=\left(2x+10\right)\left(1-\sqrt{3+2x}\right)^2\)
\(\frac{1}{1-\sqrt{1-x}}-\frac{1}{1+\sqrt{1-x}}=\frac{\sqrt{3}}{x}\)
\(\sqrt{x+3}+2x\sqrt{x+1}=2x+\sqrt{x^2+4x+3}\)
\(\sqrt{x-2}+\sqrt{4-x}=x^2-6x+11\)
GIẢI CÁC PT SAU:
\(\sqrt{x-1}+\sqrt{3-x}-\sqrt{\left(x-1\right)\left(3-x\right)}=1\)
\(\sqrt{x}+\sqrt{9-x}=\sqrt{-x^2+9x+9}\)
Giải các pt sau bằng cách đặt ẩn phụ:
a/\(-4\sqrt{\left(4-x\right)\left(2+x\right)}=x^2-2x-12\)
b/\(\left(x-3\right)^2+3x-22=\sqrt{x^2-3x+7}\)
c/\(\frac{\sqrt{x+4}+\sqrt{x-4}}{2}=x+\sqrt{x^2-16}-6\)
d/\(\sqrt{x-1}+\sqrt{x+3}+2\sqrt{\left(x-1\right)\left(x+3\right)}=4-2x\)
e/\(\sqrt{x+7}+\sqrt{7x-6}+\sqrt{49x^2+7x-42}=181-14x\)
f/\(5\sqrt{x}+\frac{5}{2\sqrt{x}}=2x+\frac{1}{2x}+4\)
GIẢI CÁC PT SAU:
\(\sqrt{x^2+5x+1}=\sqrt{x+1}\)
\(\sqrt{x^2+2x+4}=\sqrt{2-x}\)
\(\sqrt{2x+4}-\sqrt{2-x}=0\)
giải pt sau
\(\sqrt{\left(x-1\right)}+\sqrt{3-x}-\sqrt{\left(x-1\right)\left(3-x\right)}=1\)
help mình vs
Giải pt:
1, (x+1)4-3(x2+2x)-3= 0
2, \(\frac{2}{\sqrt{5x+1}-1}+\sqrt{5x+1}=\frac{14}{3}\)
GIẢI PT SAU:
\(\sqrt{3x^2-2x+6}+3-2x=0\)
\(\sqrt{x+1}+\sqrt{x-1}=4\)
