Completing the square  Quadratic Functions
Completing the square
Lessons
Notes:
perfect squares:
 ${\left( {x + a} \right)^2} = {x^2} + 2ax + {a^2}$
 ${\left( {x  a} \right)^2} = {x^2}  2ax + {a^2}$
 completing the square: adding a constant to a quadratic expression to make it a perfect square

a)
Review: expanding a perfect square.

b)
How to convert a polynomial into a perfect square

c)
How to complete the square
