SOLUTION: The graph of f(x) = x2 + x - 30 is shown. What are the roots of x2 + x - 30 = 0? https://takeexam.next.ecollege.com/ec/pub/K12Content/Courses/resources/swfs/media/Ninth_Grade

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: The graph of f(x) = x2 + x - 30 is shown. What are the roots of x2 + x - 30 = 0? https://takeexam.next.ecollege.com/ec/pub/K12Content/Courses/resources/swfs/media/Ninth_Grade      Log On


   

Question 712243:
The graph of f(x) = x2 + x - 30 is shown. What are the roots of x2 + x - 30 = 0?
https://takeexam.next.ecollege.com/ec/pub/K12Content/Courses/resources/swfs/media/Ninth_Grade/Math/Unit19192/Lesson73274/HS_AL2_L2_S2_01_09_LQ1.gif
That ^^ is the graph. Thank you :)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
The graph doesn't work (something about a log in error, but I don't know)

Anyways, you can factor x^2 + x - 30 to get (x - 5)(x + 6)

So

x^2 + x - 30 = 0

is the same as

(x - 5)(x + 6) = 0

which breaks up into

x - 5 = 0 or x + 6 = 0

Solve each equation for x to get your two roots