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the quadratic equation x 2 + (3k+1)x + (4-9k), where k is constant , has repeated roots. Show that 9k 2 + 42k - 15

the quadratic equation x2 + (3k+1)x + (4-9k), where k is constant , has repeated roots.

Show that 9k2 + 42k - 15 =0

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