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avatar+1859 

One of the five quadratics below has a repeated root.  (The other four have distinct roots.)  What is the repeated root?

x^2 - 2x + 1

x^2 - 4x - 4

x^2 + 6x - 9

x^2 + 26x + 25

x^2 - 5x + 4

 Dec 23, 2023
 #1
avatar+129690 
+1

x^2 - 2x + 1  = 0

 

(x - 1) (x - 1)  =  0 

 

This has a repeated root of 1

 

cool cool cool

 Dec 24, 2023

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