bbbspiker1 bbbspiker1
  • 27-04-2015
  • Mathematics
Answered

how do you solve \r+3=r-3 by the way / is a radical sign



Answer :

JaySL JaySL
  • 27-04-2015
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.
Answer Link

Other Questions

what country did hernando de soto work for?
Explain why animals must eat food, but plants do not have to.
How do parents pass their traits down to their offspring?
What's the scientific name of a flathead bullhead catfish?
A park is in the shape of a rectangle 2 miles long and 1.5 miles wide. How much shorter if you walk diaganolly across the park rather than along two sides?
what interaction between American Indians and European colonists was most important.? why?
3n-5=-8(6+5n) SOLVE
What's the scientific name of a flathead bullhead catfish?
solving fraction equations:  Write the solution in simplest form 6 1/4 = z + 1 5/8
The ratio of women to men in the theater was 5 to 4. If there are 1200 women, how many men were there?