Examples
x2-3x=0x2−3x=0
Step 1
Step 1.1
Factor xx out of x2x2.
x⋅x-3x=0x⋅x−3x=0
Step 1.2
Factor xx out of -3x−3x.
x⋅x+x⋅-3=0x⋅x+x⋅−3=0
Step 1.3
Factor xx out of x⋅x+x⋅-3x⋅x+x⋅−3.
x(x-3)=0x(x−3)=0
x(x-3)=0x(x−3)=0
Step 2
If any individual factor on the left side of the equation is equal to 00, the entire expression will be equal to 00.
x=0x=0
x-3=0x−3=0
Step 3
Set xx equal to 00.
x=0x=0
Step 4
Step 4.1
Set x-3x−3 equal to 00.
x-3=0x−3=0
Step 4.2
Add 33 to both sides of the equation.
x=3x=3
x=3x=3
Step 5
The final solution is all the values that make x(x-3)=0x(x−3)=0 true.
x=0,3x=0,3