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One of the five quadratics below has a repeated root. (The other four have distinct roots.) What is the repeated root?
\( \begin{align*} &-x^2 + 18x + 81 \\ &3x^2 - 6x + 9 \\ &8x^2 - 32x + 32 \\ &25x^2 - 30x - 9 \\ &x^2 - 14x + 196 \end{align*}\)

 Apr 23, 2022
 #1
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The quadratic x^2 - 14x + 196 has a repeated root of 14, so that is the answer.

 Apr 23, 2022
 #2
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It's wrong can you check again?

 Apr 23, 2022
 #3
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See my answer in your latest post

 

cool cool cool

CPhill  Apr 23, 2022

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