CarringtonKay CarringtonKay
  • 08-09-2015
  • Mathematics
contestada

X^2-6x+4=0
Please explain how to do quadratic formula with this problem.

Respuesta :

Panoyin
Panoyin Panoyin
  • 08-09-2015
[tex]x^{2} - 6x + 4 = 0[/tex]
[tex]\frac{-(-6) \± \sqrt{-(-6)^{2} - 4(1)(4)}}{2(1)}[/tex]
[tex]\frac{6 \± \sqrt{36 - 16}}{2}[/tex]
[tex]\frac{6 \± \sqrt{20}}{2}[/tex]
[tex]\frac{6 \± 2\sqrt{5}}{2}[/tex]
[tex]3 \± \sqrt{5}[/tex]
[tex]3 + \sqrt{5}[/tex]    [tex]or[/tex]    [tex]3 - \sqrt{5}[/tex]
Answer Link

Otras preguntas

. A bicameral legislature features A. one legislative body. B. one hundred equal representatives. C. four equal legislative bodies. D. two legislative bodies
how do you know if a number is smaller or bigger
what is the least common denominater for 5/6 and 3/8
what is 1/10 of 1000
Complete the formula. density = _____
Which fraction is not equivalent to 7/30? A 35/100, B 28/80, C 21/60, D 14/50
What is 44% as a fraction in simplest form
please help me with this. thank you
what is the least common denominater for 5/6 and 3/8
convert the mixed number 7 4/7 to a mixed decimal and round the nearest thousand