Seudónimo
Seudónimo
29-02-2016
Mathematics
contestada
help solving 4x^2-12x+9=5
Respuesta :
Panoyin
Panoyin
01-03-2016
4x² - 12x + 9 = 5
- 5 - 5
4x² - 12x + 4 = 0
4(x²) - 4(3x) + 4(1) = 0
4(x² - 3x + 1) = 0
4 4
x² - 3x + 1 = 0
x = -(-3) ± √((-3)² - 4(1)(1))
2(1)
x = 3 ± √(9 - 4)
2
x = 3 ± √(5)
2
x = 1.5 ± √(5)
x = 1.5 + √(5) or x = 1.5 - √(5)
Answer Link
VER TODAS LAS RESPUESTAS ( 63+ )
RELAXING NOICE
Otras preguntas
A characteristic reaction of Group 1A(1) elements: chunks of sodium react violently with water to form hydrogen gas and sodium hydroxide solution. Write a balan
For a scientific experiment, a physicist must make sure that the temperature of a metal does not get colder than −80 °C. The physicist changes the metal's tempe
PLEASE HELP OMG PLEASE
AP CALC AB - INTRO TO PARTICLE MOTION PRACTICEI found a page that kinda helps, but I'm not sure how they got (2.5, 11).
How many breeds of rabbits are recognized by the arba.
Residents of the 50 most populous metropolitan statistical areas in the United States listed ____ as one of cities where they feel safe walking alone at night.
J. Jackson invested $1,000 in his business in exchange for common stock. Show how to use T-accounts to record this transaction by selecting the correct answer b
Suppose that you flip a coin 40 times and count the number of heads. 1.1. What is the distribution of the number of heads assuming the coin is fair
Julia arranged a bouquet of roses and daisies. Each rose cost $2 and each daisy cost $3. If there were a total of 14 flowers and Julia spent $32 on the bouquet,
Which expressions are equivalent to Negative 9 (two-thirds x 1)? Check all that apply. Negative 9 (two-thirds x) 9 (1) Negative 9 (two-thirds x) minus 9 (1) Neg