SOLUTION: 12s^2=45+51s HELP PLEASE!!!

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Question 441492: 12s^2=45+51s HELP PLEASE!!!
Found 2 solutions by stanbon, MathLover1:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
12s^2=45+51s
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Rearrange:
12s^2 - 51s - 45 = 0
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Divide thru by 3:
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4s^2 - 17s - 15 = 0
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4s^2 -20s+3s -15 = 0
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4s(s-5) + 3(s-5) = 0
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(s-5)(4s+3) = 0
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s = 5 or s = -3/4
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Cheers,
Stan H.
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Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
12s%5E2=45%2B51s

12s%5E2-51s-45=0.....use quadratic formula

s+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ .notice that a=12, b=-51 and c=-45

s+=+%28-%28-51%29+%2B-+sqrt%28+%28-51%29%5E2-4%2A12%2A%28-45%29+%29%29%2F%282%2A12%29+

s+=+%2851+%2B-+sqrt%28+2601%2B2160+%29%29%2F24+

s+=+%2851+%2B-+sqrt%28+4761%29%29%2F24+

s+=+%2851+%2B-+69%29%2F24+

s1+=+%2851+%2B+69%29%2F24+

s1+=+120%2F24+

s1+=+5+......one root

s2+=+%2851+-+69%29%2F24+

s2+=+-18%2F24+

s2+=-0.75+......another root