soltmanc55 soltmanc55
  • 07-08-2017
  • Mathematics
contestada

Solve 8x 2 - 2x - 1 = 0

{-1/4, 1/2}
{-1/2, 1/4}
{1/2}

Respuesta :

choixongdong
choixongdong choixongdong
  • 07-08-2017
8x^2 - 2x - 1 = 0
(2x - 1)(4x + 1) = 0
2x - 1 = 0; x = 1/2
4x + 1 = 0;x = -1/4

answer
{-1/4, 1/2}
Answer Link

Otras preguntas

Enunciate demerits of classical probability.
Suppose that Portugal and Germany both produce beer and stained glass. Portugal's opportunity cost of producing a pane of stained glass is 4 barrels of beer whi
In the gragh the y - i tercept of line is
Step 1: –10 + 8x < 6x – 4 Step 2: –10 < –2x – 4 Step 3: –6 < –2x Step 4: ________ What is the final step in solving the inequality –2(5 – 4x) < 6x –
Subtract [tex] - 3[/tex][tex] - {2y}^{3} [/tex][tex] - y[/tex][tex] - {5y}^{2} [/tex] from[tex] - {2y}^{3} [/tex][tex] + 4[/tex]​
8. Describe the role played by the English government in colonizing North America.
Balance the equation for __Ca+__Pb(NO3)2—__Pb+__Ca(NO3)2
evaluate the expression when x=7 and y= -2 -x+8y​
CANE SOMEONE HELP ME ON GEOMETRY
determine the 2nd and 3rd terms of a geometric sequence of which T1 =5 and T4=40​