Respuesta :

Answer:

assuming x2 is x^2:

f(x) = (x+4)^2 - 3

Step-by-step explanation:

1. move c to f(x) side

2. make sure a=1

3. (b/2)^2

4. add the solution of 3 on both sides

5. factor the right side using the shortcut

6. add c back to the other side

Answer:

Step-by-step explanation:

f(x)=x²+8x+13 ​

f(x) = (x²+8x+16) -16+13

f(x) = (x+4)²- 3......vertex form

.