Question

If 3x^2-2x+7=0, then (x-1/3)^2=

Answer 1

3x² - 2x + 7 = 0
3x² - 2x = - 7
x² - 2/3x = - 7/3
x² - 1/3x = - 7/3 + (1/3)²
x² - 1/3x = - 21/9 + 1/9

Answer: (x - 1/3)² = - 20/9

Answer 2

How did you get x^2-1/3x=-7/3+(1/3)^2?

Answer 3

this explains everything.
http://www.algebra.com/algebra/homework/Polynomials-and-rational-expressions/Polynomials-and-rational-expressions.faq.question.165592.html

Answer 4

Thank you