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

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Answer 1 · 2016-10-05T09:47:08

3/2

$4x^2 - 12x + 9 = 0$
or, $(2x)^2 - 2.2x.3 + (3)^2 = 0$
or, $(2x - 3)^2 = 0$
or, 2x - 3 = 0
or, 2x = 3
or, x = 3/2

How do you solve using the completing the square method 4x^2 + 9 = 12x4x^2 + 9 = 12x?