Question

9 x square - 12 x + 2 = 0 for square complete method

Answer 1

(3x)^2-2.3x.2+2^2-4+2=0
(3x-2)^2-under root2=0
3x-2=+-underroot 2
3x=2+-under root 2
x= (2+-under root2)/3

Answer 2

$(- b \frac{ + }{ - } \sqrt{{b}^{2} - 4ac } ) \div 2a$
apply this formula