esmelanddo esmelanddo
  • 18-04-2022
  • Mathematics
contestada

completing the square k^2-2k-8=0

Respuesta :

loneguy
loneguy loneguy
  • 18-04-2022

[tex]~~~~k^2-2k-8=0\\\\\implies k^2 - 2k +1^2-1-8=0\\ \\\implies ( k-1)^2-9=0\\\\\implies (k-1)^2-3^2 =0\\\\\implies (k-1-3)(k-1+3)=0\\\\\implies (k-4)(k+2)=0\\\\\implies k=4,~~ k= -2[/tex]

Answer Link

Otras preguntas

how are regionalism and realism alike? check two boxes
A line that passes through (-1, -5) and (4, -2)
(Score for Question 2: ___ of 5 points) 3. A line goes through the points (3,4) and (-3,6). (a) What is the slope of the line? Show your work (b) Write the equa
(1+6)9 _______= 5²-4
-17x+2y 3x-9y Find the sum
Select the correct answer How would you introduce yourself if you were Maria?
9. From the time a restraint is implemented, there must be a restraint reduction plan in place. True o False
On September 1, 2010, Lowe Co. issued a note payable to National Bank in the amount of $600,000, bearing interest at 12%, and payable in three equal annual prin
Humans maintaining a stable body temperature is an example of
A good security awareness program makes employees aware of the behaviors expected of them. All security awareness programs have two enforcement components: the