\(\Leftrightarrow4x^2-4x+1-4x^2-16x-16=5x^2+5x-10-7x^2-7x\)
\(\Leftrightarrow-20x-15=-2x^2-2x-10\)
\(\Leftrightarrow2x^2-18x-5=0\)
mik giải đến đây lại ko có nghiệm bạn sem lại sem có sai đề ko nha
Tìm x: \(\left|x-5\right|+\frac{\left(x-1\right)\left(x-3\right)}{2}=\frac{\left(x+1\right)^2}{3}-\frac{\left(1-2x\right)^2}{4}\)
Tìm x: \(\left(2x+1\right)^2-3\left(2-x\right)^2+2\left(x-1\right)\left(x+2\right)=4-2\left(1-x\right)\)
Tìm x: \(\left(x-2\right)^3+3\left(2x-3\right)^2=\left(3+x\right)^3-5\left(1+3x\right)^2-\left(x-1\right)\left(3-x\right)\)
Tìm x: \(\frac{\left(2-3x\right)^2}{3}-\frac{\left(1+2x\right)^2}{2}=\frac{3}{4}-2\left(x-1\right)\left(x+2\right)+x\left(1+x\right)\)
Tìm x : \(\frac{\left(2x+1\right)^2}{2}-\left|x+1\right|=\frac{\left(x-2\right)^2}{3}-3\left(x+4\right)\)
Tìm x: \(\left(x-2\right)^3+2\left(1+2x\right)^2=\left(1+x\right)^3-3\left(x-2\right)^2-\left(x-1\right)\)
Tìm x: \(\left(x-3\right)^3+2\left(2x-1\right)^2-2\left(x-1\right)=\left(2+x\right)^3-3\left(1+3x\right)^2\)
Tìm x: \(\frac{\left(x-3\right)^2}{3}-\frac{\left(2x+1\right)\left(1-3x\right)}{2}=\frac{x\left(x+2\right)}{3}-\left(1+x\right)^2\)
Tìm x : a) \(\left|5x-4\right|=\left|x+2\right|\)
b) \(5-\left|x-2\right|=3-\left(2x+1\right)\)
