\(3\sqrt{2x}=9\Rightarrow\sqrt{2x}=3\Leftrightarrow2x=9\Leftrightarrow x=\frac{9}{2}\)
\(3\sqrt{2x}=9\Rightarrow\sqrt{2x}=3\Rightarrow x=\frac{9}{2}\)
1) \(\sqrt{x^2-9}+\sqrt{x^2-6x+9}=0\)
2) \(\sqrt{2x-2+2\sqrt{2x-3}}+\sqrt{2x+13+8\sqrt{2x-3}}=5\)
Cho biểu thức: P = 2 x x + 3 + x x - 3 - 3 x + 3 x - 9 : 2 x - 2 x - 3 - 1
A. P = 3 x + 3
B. P = - 3 x + 3
C. P = - 3 x - 3
D. P = 3 x - 3
giải phương trình sau:\(\frac{2x^2}{\left(3-\sqrt{9+2x}\right)}=x+9\)
Giải phương trình :
\(\sqrt{8x+13+4\sqrt{2x+3}}+\sqrt{2x+7-3\sqrt{2x+3}}=9\)
\(\sqrt{8x+13+4\sqrt{2x+3}}+\sqrt{2x+7-3\sqrt{2x+3}}=9\)
Giải PT
Giải phương trình
\(4x^2+\sqrt{2x+9}=9\)
\(\left(x+1\right)\left(x+3\right)=5\sqrt{5x+11}\)
\(\sqrt{4x+9}+3\left(2x+1\right)=2x^2\)
\(4\sqrt{x+3}+\sqrt{19-3x}=x^2+2x+9\)
\(x\sqrt{3-2x}=3x^26x+4\)
1) |2x - 1| = 5
2) |2x - 1| = |x + 5|
3) |3x + 1| = x - 2
4) |3 - 2x| = x + 2
5) |2x - 1| = 5 - x
6) |- 3x| = x - 2
7) |2 - 3x| = 2x + 1
8) |2x - 1| + |4x ^ 2 - 1| = 0
9) (2x + 5)/(x + 3) + 1 = 4/(x ^ 2 + 2x - 3) - (3x - 1)/(1 - x)
10) (x - 1)/(x + 3) - x/(x - 3) = (7x - 3)/(9 - x ^ 2)
11) 5 + 96/(x ^ 2 - 16) = (2x - 1)/(x + 4) + (3x - 1)/(x - 4)
12) (2x)/(2x - 1) + x/(2x + 1) = 1 + 4/((2x - 1)(2x + 1))
13) (x + 2)/(x - 2) - 1/x = 2/(x ^ 2 - 2x)
14) x/(2x - 6) + x/(2x + 2) = (2x + 4)/(x ^ 2 - 2x - 3)
6) \(\sqrt{x^2+12x+36}=-x-6\)
7) \(\sqrt{9x^2-12x+4}=3x-2\)
8) \(\sqrt{16-24x+9x^2}=2x-10\)
9) \(\sqrt{x^2-6x+9}==2x-3\)
10) \(\sqrt{x^2-3x+\dfrac{9}{4}}=\dfrac{3}{x}x-4\)
1. Tìm x, biết:
a. [3x -1].[-1/2x +5]=0.
b. 1/4 + 1/3 : [2x-1] = 5.
c. [2x + 3/5]mũ 2 - 9/25 = 0.
d. 3.[3x -1/2] mũ 3 + 1/9 +0
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