Skip to main content
Solve for x (complex solution)
Tick mark Image
Graph

Similar Problems from Web Search

Share

xx+x=x-1
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by x.
x^{2}+x=x-1
Multiply x and x to get x^{2}.
x^{2}+x-x=-1
Subtract x from both sides.
x^{2}=-1
Combine x and -x to get 0.
x=i x=-i
The equation is now solved.
xx+x=x-1
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by x.
x^{2}+x=x-1
Multiply x and x to get x^{2}.
x^{2}+x-x=-1
Subtract x from both sides.
x^{2}=-1
Combine x and -x to get 0.
x^{2}+1=0
Add 1 to both sides.
x=\frac{0±\sqrt{0^{2}-4}}{2}
This equation is in standard form: ax^{2}+bx+c=0. Substitute 1 for a, 0 for b, and 1 for c in the quadratic formula, \frac{-b±\sqrt{b^{2}-4ac}}{2a}.
x=\frac{0±\sqrt{-4}}{2}
Square 0.
x=\frac{0±2i}{2}
Take the square root of -4.
x=i
Now solve the equation x=\frac{0±2i}{2} when ± is plus.
x=-i
Now solve the equation x=\frac{0±2i}{2} when ± is minus.
x=i x=-i
The equation is now solved.