SOLUTION: Solve the equation over complex numbers x^2 – 16 = 5x^2

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: Solve the equation over complex numbers x^2 – 16 = 5x^2      Log On


   



Question 245576: Solve the equation over complex numbers
x^2 – 16 = 5x^2

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
x^2 – 16 = 5x^2
subtract 5x^2 from both sides
-4x^2-16=0
add 16 to both sides
-4x^2=16
divide both sides by -4
x^2=-4
x=+\-2i
x=-2i
x=+2i