\(\left(x^2+4x-1\right)^2=\left(x^2-4x+1\right)^2\)
\(\Leftrightarrow\left(x^2+4x-1\right)^2-\left(x^2-4x+1\right)^2=0\)
\(\Leftrightarrow\left(x^2+4x-1-x^2+4x-1\right)\left(x^2+4x-1+x^2-4x+1\right)=0\)
\(\Leftrightarrow\left(8x-2\right)2x^2=0\)
\(\Leftrightarrow\left[{}\begin{matrix}x=\dfrac{1}{4}\\x=0\end{matrix}\right.\)
Giải các phương trình sau :
a) \(\left(x-1\right)\left(5x+3\right)=\left(3x-8\right)\left(x-1\right)\)
b) \(3x\left(25x+15\right)-35\left(5x+3\right)=0\)
c) \(\left(2-3x\right)\left(x+11\right)=\left(3x-2\right)\left(2-5x\right)\)
d) \(\left(2x^2+1\right)\left(4x-3\right)=\left(2x^2+1\right)\left(x-12\right)\)
e) \(\left(2x-1\right)^2+\left(2-x\right)\left(2x-1\right)=0\)
f) \(\left(x+2\right)\left(3-4x\right)=x^2+4x+4\)
giải các phương trình sau:
a) \(\left(x-1\right)^2+x^2-1=\left(x+1\right)\left(x+3\right)\)
b) \(\left(x^2-4x\right)^2+\left(x-2\right)^2=10\)
c) \(x^4-4x^2+5\left|x^2-2\right|=-8\)
Giải các pt sau:
a. (x - 1)2 (3x - 1)= 0
b.\(\left(\frac{2x}{3}+4\right)\left(2x-3\right)\left(\frac{x}{2}-1\right)=0\)
c. (x2 - 4)\(\left(\frac{x}{4}-\frac{4x+5}{3}\right)=0\)
Mn giúp mk vs ạ
Tks nhiều
\(\left(x-\frac{3}{4}\right)^2+\left(x-\frac{3}{4}\right)\left(x-\frac{1}{2}\right)=0\)
\(\left(4x-\frac{4x-3}{5}-\frac{2\left(x+3\right)}{7}\right)=0\)
Giup minh voi cac ban oi
Giải các phương trình :
a) \(\left(3x-2\right)\left(4x+5\right)=0\)
b) \(\left(2,3x-6,9\right)\left(0,1x+2\right)=0\)
c) \(\left(4x+2\right)\left(x^2+1\right)=0\)
d) \(\left(2x+7\right)\left(x-5\right)\left(5x+1\right)=0\)
Giải phương trình:
a) \(x^2-\left(x+3\right)\left(3x+1\right)=9\).
b) \(x^3+4x+5=0\).
c) \(\left(x+14\right)^3-\left(x+12\right)^3=1352\).
d) \(x^3+\left(x-3\right)^3=\left(2x-3\right)^3\).
e) \(x\left(x+1\right)\left(x+2\right)\left(x+3\right)=360\).
f) \(x^3+\left(x-2\right)\left(2x+1\right)=8\).
\(\frac{1}{\left(x-1\right)\left(x-3\right)}+x^2-4x+5=0\)
bài 1 : cac phương trinh sau
a,\(\left(2x-4\right)\left(\dfrac{7x+2}{5}+\dfrac{2\left(1-3x\right)}{3}\right)\)
b, \(\left(2x-1\right)^2+2\left(2-x\right)\left(2x-1\right)=0\)
c, \(x^3+1=x\left(x+1\right)\)
d, \(x^3-\dfrac{1}{4}x\)
e, \(4x^2-1=0\)
g, (\(2x-1)^2-\left(x+3\right)^3\)
h, \(x\left(x^2-5\right)^2-4x=0\)
i, \(x^2-4+\left(x-2\right)^2\)
k, (x-1)(5x+3)=(3x-8)(x-1)
l, \(x^3+x^2+x+1=0\)
Các bạn ơi ! giúp mik với đi
giải các phương trình:
a)(x2+x+1)2-2x2-2x=5
b)\(\dfrac{1}{\left(x-1\right)\left(x-3\right)}\)+x2-4x+5=0
