x⁴-3x²= -2x
Step-by-step:
x⁴-3x²+2x=0
x*(x³-3x+²)=0
x*(x³-4x+x+2)=0
x*(x*(x²-4)+x+2)=0
x*(x*(x-2)*(x+2)+1)=0
x*(x+2)*(x*(x-2)+1)=0
x*(x+2)*(x²-2x+1)=0
Using a²-2ab + b²=(a-b)², factor the expression.
x*(x+2)*(x-1)²=0
Therefore x=0
Therefore x+2=0
(X-1)²=0
X=0
X=-2
X=1
Therefore
x1 is -2
x2 is 0
x3 is 1.