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%5E22x12
Copyright 2020, Wired Ivy, LLC