theirvoice945 theirvoice945

24-02-2020
Mathematics

contestada

if the one root of the quadratic equation
[tex]ax ^{2} - 5x + 2 = 0[/tex]
is 2 then the other root is

Respuesta :

amna04352 amna04352

24-02-2020

Answer:

½

Step-by-step explanation:

If 2 is a root:

a(2)² - 5(2) + 2 = 0

4a - 10 + 2 = 0

4a = 8

a = 2

2x² - 5x + 2 = 0

2x² - 4x - x + 2 = 0

2x(x - 2) - 1(x - 2) = 0

(x - 2)(2x - 1) = 0

x = 2, ½

Answer Link

Otras preguntas

what happens when 2 or moreatoms bond together? a. the substance is not pure.b. a mixture is made.c. a new, pure substance is made.

Why did the Committee of Public Safety pass the Decree Against Profiteers?

Merideth's brother, Miles, is 3 years younger than twice her age. The sum of their ages is 24. Create an equation to determine their ages. How old are they?

if your know two points on a line, how can you find the rate of change of the variables being graphed

Which would the phrase "eight more than a number" look like as a variable expression?

Is a blood vessel an organ

What is the body's first line of defense against bacteria and viruses? saliva, mucus, and hairs antibodies lymphocytes lymph nodes

what i expect myself to do this year to be successful :

Susan's point total is greater than -25. Does Susan need more than 25 points are fewer than 25 points.

In the 1800s, the United States was still a very young nation, trying to solidify its identity. The Industrial Revolution began in Great Britain, a fast develop