The quadratic expression (x-2)^2-9 is written in vertex form.
a. Write the expression in standard form
b. Write the expression in factored form
a.
y = (x -2)^2 - 9 expand
x^2 - 2x - 2x + 4 - 9
x^2 - 4x - 5
b. factored form :
y = ( x -5) ( x + 1)
+98 
