# How do you solve using the completing the square method 4x^2 + 9 = 12x?

Oct 5, 2016

3/2

#### Explanation:

$4 {x}^{2} - 12 x + 9 = 0$
or, ${\left(2 x\right)}^{2} - 2.2 x .3 + {\left(3\right)}^{2} = 0$
or, ${\left(2 x - 3\right)}^{2} = 0$
or, 2x - 3 = 0
or, 2x = 3
or, x = 3/2