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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

 Apr 6, 2020
 #1
avatar+111329 
+2

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)

 

 

 

cool cool cool

 Apr 6, 2020

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