radboy15mdosy0oe radboy15mdosy0oe
  • 24-07-2017
  • Mathematics
contestada

What number must you add to complete the square? x^2+14x=-7

a. 196
b.7
c. 49
d. 14

Respuesta :

PastaMario
PastaMario PastaMario
  • 24-07-2017
To complete the square of a polynomial, use the term "(b / 2) ^ 2".

In this polynomial, the "b" term is 14.
Plug that in.

(14 / 2) ^ 2
7 ^ 2

49.

The answer is C.
Answer Link
wikk
wikk wikk
  • 24-07-2017
First you need to divide b by 2a.
14/2(1)
14/2 = 7

Then square that number you got.

7^2 = 49

The answer is C. 49.
Answer Link

Otras preguntas

1.1x+1.2x-5.4= -10 what does x equal?
What is the value of the expression |a+b|+|c| when a = –5, b = 8, and c = –13? a. –26 b. 0 c. 16 d. –10
nate solves the problem 3x5=15 by writing and solving 15 divide 5=3. explain why nates method works
Which answer corrects the error in capitalization? In the month of February, Washington's birthday is an official federal holiday. A. Federal B. february C.
The year 1789 is an important date in the history of civilization. In that year __________.
which of the following is an example of an exploitation colony
what is the unit rate for 12 pounds into $5.79
What is the theme of the story of Rapunzel
What is the difference between rational and irrational numbers?
What led to the growth of factories in England in the eighteenth century?