Posted by **JOHN** on Tuesday, May 29, 2007 at 11:15pm.

r^2+8r=48

First bring the 48 to the other side of the equation

r^2+8r-48=0

Now you can use the quadratic formula.

x=-b+-sqrt(b^2-(4ac))

¯¯¯¯¯¯¯2a¯¯¯¯¯¯¯¯¯

So...

a=1

b=8

c=-48

Now just plug the numbers into the quadratic equation and get your two answers.

The answers are: x=-12 and x=4

Feel free to ask if you need any more help. :-)

## Answer This Question

## Related Questions

- Math - Use the quadratic formula to solve each of the following quadratic ...
- math,help,algebra I - I need help can someone help me get unstuck and let me ...
- math - (4-y^2)/(y-2) = y/2 (4-y^2)/(y-2) = y/2 4 - y^2 = (y*(y-2))/2 4 - y^2 = (...
- math help how do i do this - Decide which part of the quadratic formula tells ...
- math - use the quadratic formula to solve this equation. 4x^2-8x+3=5 use the ...
- math help plsss plsss - Decide which part of the quadratic formula tells you ...
- Math(check) - Solve 1= (y+3)(2y-2) Use foil on the right side. 1 = 2y^2 +6y -2y...
- algebra II - I'm quite clueless as to how to solve this. I know the quadratic ...
- algebra - Can someone please help me with this one? Solve (5x+4)^1/2-3x=0 Just ...
- math,algebra - can someone help me out factor out this 0=16t^2-122t+180 i have ...

More Related Questions