anonymous
  • anonymous
Help will give medals!!!!! In the function f(x) = 5(x2 − 4x + ____) + 15, what number belongs in the blank to complete the square?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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Spid
  • Spid
Ok the answer is 5x2 is 10 and then minus 2-4 is 2 and then 4x+2 is 6
anonymous
  • anonymous
Can you show me how you got that?
Spid
  • Spid
So 6 is in the box

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More answers

mathstudent55
  • mathstudent55
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.
Spid
  • Spid
Perfect math student
Spid
  • Spid
Bravo
mathstudent55
  • mathstudent55
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.
anonymous
  • anonymous
Okay, thanks guys!
Spid
  • Spid
You have to do 2-4 equal 2
mathstudent55
  • mathstudent55
@noliveiraa What did you get?
Spid
  • Spid
Our medals please
anonymous
  • anonymous
so it would be -4?
Spid
  • Spid
I got 2
anonymous
  • anonymous
and i gave the medals already @spid
Spid
  • Spid
It's not spid it's spiderman
mathstudent55
  • mathstudent55
No. The complete the square term is always positive. Half of -4 is -2 -2 squared is 4. The answer is 4.
Spid
  • Spid
What ever man bye
anonymous
  • anonymous
Okay, so i am confused the answer 6 or not
Spid
  • Spid
Yessss 😭😭
Spid
  • Spid
I'm going to cry
mathstudent55
  • mathstudent55
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.
Spid
  • Spid
He don't know nothing
Spid
  • Spid
Math man good luck
anonymous
  • anonymous
So then it is 4 because 4 is a perfect square, and i believe mathstudent55
Spid
  • Spid
6
Spid
  • Spid
I don't got it
anonymous
  • anonymous
Okay, thanks!
mathstudent55
  • mathstudent55
@noliveiraa Now you got it. 4 is the answer.
Spid
  • Spid
No problem
Spid
  • Spid
Hey my medal
Spid
  • Spid
I'm reporting u
anonymous
  • anonymous
Why..
anonymous
  • anonymous
You gave me the wrong answer and did not help me
anonymous
  • anonymous
solve it
Spid
  • Spid
I did to
anonymous
  • anonymous
Well 4 was right
Spid
  • Spid
In wasting my time

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