SOLUTION: PLEASE HELP ME I've been working on the same problem for over an hour and I'm still stuck. "The force in newtons needed to stretch a certain spring x cm from its resting positio

Question 556641: PLEASE HELP ME I've been working on the same problem for over an hour and I'm still stuck.
"The force in newtons needed to stretch a certain spring x cm from its resting position is given by the polynomial function f(x) = 6x�where 6 is the spring constant. If a force of 54 newtons is applied, how far will the spring be stretched?"
From what I know, I substitute: 54(x)=6x^2, but from there I can't do it.

Thank you in advance for your help!
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Substitute
Divide by 6.
Take the square root, use positive solution only.
cm.
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