SOLUTION: How do I solve this? -28x^2=4x. How do I make it equal 0? Its my last question on my hw n if I get this wrong I have to start all over again. :( I think I may have an answer but I

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons -> SOLUTION: How do I solve this? -28x^2=4x. How do I make it equal 0? Its my last question on my hw n if I get this wrong I have to start all over again. :( I think I may have an answer but I      Log On


   

Question 687413: How do I solve this? -28x^2=4x. How do I make it equal 0?
Its my last question on my hw n if I get this wrong I have to start all over again. :( I think I may have an answer but I dnt want to push enter n it say I got it wrong n have to start over for the 3rd time
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
-28x%5E2=4x

-28x%5E2-4x+=+0

-4x%287x+%2B+1%29+=+0

-4x+=+0 or 7x+%2B+1+=+0

-4x+=+0 or 7x+=+-1

x+=+0%2F%28-4%29 or x+=+-1%2F7

x+=+0 or x+=+-1%2F7

So the two solutions are x+=+0 or x+=+-1%2F7