$\sqrt{25x^2+80x+64}+\sqrt{9x^2-6x+1}=\sqrt{4x^2+36x+81}$
giai phuong trinh
Giai phuong trinh :\(\sqrt{6x-1}+\sqrt{9x^2-1}=1\)
giai phuong trinh:\(\sqrt{4x^2+5x+1}\) -2\(\sqrt{x^2-x-1}\)=3-9x
a) \(\sqrt{4x+20}+\sqrt{x+5}-\dfrac{1}{3}\sqrt{9x+45}=4\)
b) \(\sqrt{36x-36}-\sqrt{9x-9}-\sqrt{4x-4}=16-\sqrt{x-1}\)
c) \(\sqrt{x^2+6x-9}-2\sqrt{x^2-2x+1}+\sqrt{x^2}=0\)
Giai phuong trinh :\(\sqrt{2-x^2+2x}+\sqrt{-x^2-6x+8}=1+\sqrt{3}\)
a \(\sqrt{4x-20}+\sqrt{x-5}-\dfrac{1}{3}\sqrt{9x-45}=4\)
b \(\sqrt{x-1}+\sqrt{4x-4}-\sqrt{25x-25}=4\)
c \(\dfrac{1}{3}\sqrt{x-2}-\dfrac{2}{3}\sqrt{9x-18}+6\sqrt{\dfrac{x-2}{81}=-4}\)
d \(\sqrt{9x+27}+4\sqrt{x+3}-\dfrac{3}{4}\sqrt{16x+48}=0\)
4. giái phương trình
a.\(\sqrt{x-1}+\sqrt{4x-4}-\sqrt{25x-25}+2=0\)
b.\(\dfrac{1}{2}\sqrt{x-1}-\dfrac{3}{2}\sqrt{9x-9}+24\sqrt{\dfrac{x-1}{64}}=-17_{ }\)
Giai phuong trinh: \(\sqrt{x^2+12}+17=9x+\sqrt{x^2+5}.\)
giai phuong trinh \(\sqrt{5x^2+6x+5}\)= \(\frac{64x^3+4x}{5x^2+6x+6}\)
