Difference between revisions of "Talk:1983 AIME Problems/Problem 3"

(New page: I think what the first solution meant to say is that <math>y=-6</math> is an extraneous solution since <math>-6 \neq 2\sqrt{-6+15}</math> (the <math>\sqrt{}</math> symbol is defined as the...)
 
m (added timestamp to my comment)
 
Line 1: Line 1:
I think what the first solution meant to say is that <math>y=-6</math> is an extraneous solution since <math>-6 \neq 2\sqrt{-6+15}</math> (the <math>\sqrt{}</math> symbol is defined as the positive square root.) Thus, solution one has the correct answer.
+
I think what the first solution meant to say is that <math>y=-6</math> is an extraneous solution since <math>-6 \neq 2\sqrt{-6+15}</math> (the <math>\sqrt{}</math> symbol is defined as the positive square root.) Thus, solution one has the correct answer.  
 +
--[[User:Xantos C. Guin|Xantos C. Guin]] 01:51, 22 May 2009 (UTC)

Latest revision as of 20:51, 21 May 2009

I think what the first solution meant to say is that $y=-6$ is an extraneous solution since $-6 \neq 2\sqrt{-6+15}$ (the $\sqrt{}$ symbol is defined as the positive square root.) Thus, solution one has the correct answer. --Xantos C. Guin 01:51, 22 May 2009 (UTC)