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Find whether the following quadratic equations have a repeated root : 9x^2 - 12x + 4 = 0

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Find whether the following quadratic equations have a repeated root :

9x2 - 12x + 4 = 0

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Repeated roots mean d = 0.

d = b2 – 4ac

d = (–12)2 – 4(9)(4)

d = 144 – 144

d = 0

Yes, roots are repeated.

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