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. :-)

Ask a New Question or answer this question.

Similar Questions

When you set up the ICE chart, are you supposed to bring the 0.05 to the product side to give you an equation of x^2 / x - 0.05?
1. 2 answers
fter subtracting x from each side, the equation is 4y=10−x. You can rearrange the terms on the right side so the equation is
1. 1 answer
h(x)= 3x+2/7x-6find the inverse of h^-1(x) h^-1(x) = ? Would I solve it like this h(x)= 3x+2/7x-6 7xy-6y=3x+2 (bring 7x-6 to
1. 2 answers
(x/x-2)+(x-1/x+1)=-1So far I was able to get it to x + (x-1) = -(x-2)(x+1) through cross multiplying, but I'm kinda lost with
1. 5 answers