Click the images below for a video on each skill:
3.1 Solving Quadratics by Taking Square Roots
Solving Quadratics/Taking Square Root
Isolate the variable to solve. Take square root of both sides.
Real World Problems/Solve quadratics/Falling Objects
Using the formula above, find the number of seconds after the object is dropped. In the video, this will be Method 2.
Defining Imaginary Numbers
Imaginary Numbers are the square roots of negative numbers
3.2 Complex Numbers
Imaginary Numbers/Complex Numbers
Operations on Complex Numbers
Add, Subtract, Multiply, Divide Complex Numbers
3.3 Complex Solutions of Quadratic Equations
Completing the Square
How to solve non-factorable equations - Watch until 7:45.
Discriminant: How many solutions does a Quadratic have? Are they Real or Imaginary Numbers?
Use (b squared minus 4ac) to determine
two real, one real, or 2 imaginary solutions.
Solves for the solutions/roots/zeros of a Quadratic Function.
Quadratic Formula 2nd Example
*Start video at 13:55 for an example of imaginary solutions
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