the equation x²-18x+81=0 has repeated roots. true or false .
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2 thoughts on “the equation x²-18x+81=0 has repeated roots. true or false .<br />​”

1. Answer:

   [tex] {x}^{2} – 18 x + 81 = 0 \\ {x}^{2} – 9x – 9x + 81 = 0 \\ x(x – 9) + 9(x – 9) = 0 \\ (x – 9)(x + 9) = 0[/tex]

   True

   I hope it helps you

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2. Answer:

   true

   Step-by-step explanation:

   x²-9x-9x+81=0

   x(x-9)-9(x-9)=0

   (x-9) (x-9)=0

   x=9 or x=9

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