Question

@Isaiah.Feynman

Answer 1

@Nurali @digitalmonk

Answer 2

(a-b)^2 = a^2-2ab+b^2 use this to expand (3x-1)^2 then bring all the terms on one side group the x^2 terms , x terms and the constant terms

Answer 3

The attached file is the solution.

Answer 4

2x^2+3x=(3x-1)^2-x^2
2x^2+3x=9x^2-6x+1-x^2
3x+6x=9x^2-2x^2-x^2+1
9x=6x^2+1
6x^2-9x+1=0