In this video you are introduced to complex numbers. I take a look at the square roots of negative numbers and progress to solving equations where the roots are imaginary.

Solve the following:

  1.     \[{x^2} + 49 = 0\]

  2.     \[{x^2} + 2x + 5 = 0\]

  3.     \[{x^3} - 5{x^2} + 9x - 5 = 0\]