SOLUTION: Determine the roots of each equation x^2+5x+10=0 a=1 b=5 c=10 I don't know where to go after this. If you could help me, I would really appreciate it:)

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equation Customizable Word Problems -> SOLUTION: Determine the roots of each equation x^2+5x+10=0 a=1 b=5 c=10 I don't know where to go after this. If you could help me, I would really appreciate it:)      Log On


   

Question 703841: Determine the roots of each equation
x^2+5x+10=0
a=1
b=5
c=10
I don't know where to go after this. If you could help me, I would really appreciate it:)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Use the quadratic formula to solve for x

x+=+%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29

x+=+%28-%285%29%2B-sqrt%28%285%29%5E2-4%281%29%2810%29%29%29%2F%282%281%29%29 Plug in a+=+1, b+=+5, c+=+10

x+=+%28-5%2B-sqrt%2825-%2840%29%29%29%2F%282%29

x+=+%28-5%2B-sqrt%28-15%29%29%2F2

x+=+%28-5%2Bsqrt%28-15%29%29%2F2 or x+=+%28-5-sqrt%28-15%29%29%2F2

x+=+%28-5%2Bi%2Asqrt%2815%29%29%2F2 or x+=+%28-5-i%2Asqrt%2815%29%29%2F2