elpr1nc1 elpr1nc1
  • 15-04-2015
  • Mathematics
contestada

What is the solution of X2-9x+18=0

Respuesta :

Panoyin
Panoyin Panoyin
  • 15-04-2015
x² - 9x + 18 = 0
x = -(-9) +/- √((-9)² - 4(1)(18))
                     2(1)
x = 9 +/- √(81 - 72)
                 2
x = 9 +/- √(9)
            2
x = 9 +/- 3
           2
x = 4.5 + 1.5
x = 4.5 + 1.5      x = 4.5 - 1.5
x = 6                  x = 3
Answer Link

Otras preguntas

May someone explain please❤❤
How did technological advances during the Industrial Revolution change Great Britain? Which groups benefited most from these changes and which groups benefited
PLEASE HELP!!!!!! john Nash often heard voices tells him to do things and believed that he was being followed by the cia. he suffered from? A. fugue B. schizoph
Write a possible explicit rule for 6,9,12,15,18
in which number is the value of the 7 ten times the value of the 7 in the number 1273?
Which of the following statements about human capital is NOT true? Human capital is unique to each individual. Human capital increases the earning power of work
why do scient only use meters when meausing
A tree is 2 feet tall in 2010 and 5 feet tall in 2012. What is the rate of change ?
What part of new york was the capital of jazz?
SIMILAR SHAPE QUESTION. Please answer!!