Question

Help will give medals!!!!!

In the function f(x) = 5(x2 − 4x + ____) + 15, what number belongs in the blank to complete the square?

Answer 1

Ok the answer is 5x2 is 10 and then minus 2-4 is 2 and then 4x+2 is 6

Answer 2

Can you show me how you got that?

Answer 3

So 6 is in the box

Answer 4

When you have a quadratic with 1 as the coefficient of the x^2 term, to complete the square, take half of the x-term coefficient, and square it.

Answer 5

Perfect math student

Answer 6

Bravo

Answer 7

x^2 - 4x doe have a 1 as the coefficient of the x^2 term.
The coefficient of the x term is -4.
Take half of -4.
Then square that.

Answer 8

Okay, thanks guys!

Answer 9

You have to do 2-4 equal 2

Answer 10

@noliveiraa
What did you get?

Answer 11

Our medals please

Answer 12

so it would be -4?

Answer 13

I got 2

Answer 14

and i gave the medals already @spid

Answer 15

It's not spid it's spiderman

Answer 16

No.
The complete the square term is always positive.
Half of -4 is -2
-2 squared is 4.
The answer is 4.

Answer 17

What ever man bye

Answer 18

Okay, so i am confused the answer 6 or not

Answer 19

Yessss 😭😭

Answer 20

I'm going to cry

Answer 21

6 is incorrect.
The complete the square term has to be a perfect square.
6 is not a perfect square, so 6 cannot possibly be correct.

Answer 22

He don't know nothing

Answer 23

Math man good luck

Answer 24

So then it is 4 because 4 is a perfect square, and i believe mathstudent55

Answer 25

6

Answer 26

I don't got it

Answer 27

Okay, thanks!

Answer 28

@noliveiraa Now you got it. 4 is the answer.

Answer 29

No problem

Answer 30

Hey my medal

Answer 31

I'm reporting u

Answer 32

Why..

Answer 33

You gave me the wrong answer and did not help me

Answer 34

solve it

Answer 35

I did to

Answer 36

Well 4 was right

Answer 37

In wasting my time