## HelloKitty17 one year ago In the function f(x) = 5(x2 − 4x + ____) + 15, what number belongs in the blank to complete the square? Numerical Answers Expected!

1. anonymous

$(\frac{ 4 }{ 2 })^2$

2. anonymous

@HelloKitty17 lol just look at this http://openstudy.com/study#/updates/536a3239e4b031e831a94b59

3. OregonDuck

x2−4x+? (b/2) (-4/2)^2 = +4 x^2-4x+4 The answer would be 4.

4. HelloKitty17

so 4?

5. anonymous

4

6. anonymous

4/2 is 2, and 2^2 is 4

7. OregonDuck

no same house

8. OregonDuck

showed

9. anonymous

You aren't in the same house?

10. OregonDuck

yes but i do it for the medals so yeah

11. OregonDuck

we are

12. OregonDuck

but this way it looks like she is doing it herself

13. anonymous

wow