Saturday, November 9, 2013

Solve the following. sqrt(x+4)=x+4

u=sqrt%28x%2B4%29 
u=u%5E2 
u%5E2-u=0 
u%28u-1%29=0%0D%0A%0D%0A%7B%7B%7Bu=0 
or 
u=1 

if u=0 
then x=-4 
if u=1 
then
x=-3
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