How do I use a graphing calculator to find the complex zeros of #x^3-1#?
1 Answer
Sep 23, 2015
Graphing calculators can help you find real zeros but will not help you with complex roots.
Explanation:
Using the difference formula for perfect cubes :
So, this cubic has one real zero at x = 1. The other two roots are imaginary. You can use the quadratic formula to solve for these other two roots:
Hope that helped!