Answer :
Subtract three from both sides to get:
[tex] \sqrt{r} =r-6[/tex]
Square both sides to get:
[tex]r^2-12r+36=r[/tex]
Subtract r to get:
[tex]r^2-13r+36=0[/tex]
Factor to get:
(r-9)(r-4)=0
The solutions to this equation are 9 and 4.
[tex] \sqrt{r} =r-6[/tex]
Square both sides to get:
[tex]r^2-12r+36=r[/tex]
Subtract r to get:
[tex]r^2-13r+36=0[/tex]
Factor to get:
(r-9)(r-4)=0
The solutions to this equation are 9 and 4.
