math
posted by lindsay .
solve: n squared + 5n = 84 for n?

n^2+5n84=0
(n+12)(n7)=0
n= 12, or n=7
Respond to this Question
Similar Questions

math
Solve each equation and leave the answer in simplest radical form. x squared+6x9=0 n squared2n+2=5 3y squared4y2=0 I never learned how to do this. Can you help me? 
Algebra
i need to use the quadratic formula 2 solve these 4 questions: 1. x(squared)6x+4=0 2. t(squared)+4t2=0 3. 3x(squared)+10X+5=0 4. 2x=7x(squared) I just can't seem 2 get the right answer! 
math
How do i find the area of a triangle? For example: A squared + b squared= c squared 8.5 squared + 6.4 squared= c squared 72.25 + 40.96= c squared 113.21=c squared 10.6400188=c even tho i thought this was the answer it is not because 
math
i am having a minor difficulty i've been stuck for over an hour and don't know what to do i don't know is this right ? 
algebra 2 multiple choice HELP
find f(a), if f(t) = 2t2(squared)t2 A. 2(a+t)2(squared)2t+12 B. 2(t+a)2(squared)2(t+a)2 C. 2a2(squared)a2 D. 4a2(squared)2a2 I put (squared) because the two in front of it means it's being squared... please help. thanks! 
algebra 2
I am so stuck on this factoring thing. how do you solve: 1)15a(squared)b10ab(squared) 2)x(squared)8x8 3) 6p(squared)17p45 4)2r(cubed)+250 5)x(to the 6th power)64 6)x(squared)xy+2x2y 7)x(to 4th power)1 
math
how to solve (3a squared+3a+3)+(15a squared+2a9) need the steps on how to solve this I have to show all work 
Math
Find the shortcut. Solve these problems. Then find and explain a shortcut method for finding the answer. 52(Squared)  42 (squared) = 82 (Squared)  72 (Squared) = 122 (Squared)  112 (Squared) = 312 (Squared)  302 (Squared) = 892 … 
MATH
My Math work instructions is place the numbers from least to greatest. 7 squared, 2, 8/2 squared = 2, seven squared, and 8/2 squared. 10 squared, pi, 3.5 = pi, 3.16, 3.5. 220 squared, 10, 100 squared, 11.5 = 10, 220 squared, 100 … 
Math
My Math work instructions is place the numbers from least to greatest. 7 squared, 2, 8/2 squared = 2, seven squared, and 8/2 squared. 10 squared, pi, 3.5 = pi, 3.16, 3.5. 220 squared, 10, 100 squared, 11.5 = 10, 220 squared, 100 …