cblack4real cblack4real

01-11-2020
Mathematics

contestada

If the equation y² - (K-
2y + 2k +1 = 0
with equal roots find the value of k

Respuesta :

Lightning25346 Lightning25346

01-11-2020

Answer:

y² - (K- 2)y + 2k +1 = 0

equal roots means D=0

D= b^2 - 4ac

a=1, b= (k-2), c= 2k+1

so,

(k-2)^2 - 4(1)(2k+1) = 0

=> k^2 +4 - 8k -4 = 0

=> k^2 -8k = 0

=> k^2 = 8k

=> k= 8k/k

=> k = 8

Therefore the answer is k= 8

Hope it helps........

Answer Link

Otras preguntas

Rita has 507 books stored on 39 shelves. The same number of books are on each shelf. How many books are on each shelf?

PLEASE HELP!! URGANT!!

5. What is Social Security?

If years B.C. are represented by negative numbers and years A.D. by positive numbers, how many years are there from 40 B.C. to 4 B.C.

What is each civilization best known for (minimum of three)?

how can you make the number 1 using the digits 1984 and using any equation?

Does anybody know a review or summmary for the book called, "When We Were Lost" ?

Investment in Production Quick Check Explain how Great Britain's economy helped mark the beginning of the world's factory-based economy. (1 point) A)The use of

Which type of operating system is best for a personal computer?

Use the distributive property to write an equivalent expression. 8(4m +3n) Submit Answer Answer: