ANSWERS: 1
  • This is a mess because 3 is not a square number. You can divide by 3 to get 0 = x^2 - (2/3)x - 4 and then take half of -2/3 and square it and add to both sides. 1/9 = x^2 - (2/3)x - 4 + 1/9. Then add 4 to both sides and factor. +/-2 = x + 1/3.and then x = +/-2 - 1/3. I guess I am a bit sleepy because Wolframalpha got a different answer: http://www.wolframalpha.com/input/?i=solve+0%3D3x%5E2-2x-12

Copyright 2020, Wired Ivy, LLC

Answerbag | Terms of Service | Privacy Policy