9x² - 12x + 4 = 0
(3x - 2)² = 0
3x - 2 = 0
3x = 2
 x = [tex]\frac{2}{3}[/tex]
There is 1 REAL DOUBLE ROOT
Discriminant: b² - 4ac
= (-12)² - 4(9)(4)
= 144 - 144
= 0
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A = 0
B = The equation has one repeated real solution.