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Homework Help: Check is this right?

  1. Nov 30, 2004 #1
    :smile: Solve 3x(x+2)=-18 by completing square and quadratic formula. I did both methods and got -1+or-the square root of 5 i
    Can someone just tell me if this is correct?
    Last edited: Nov 30, 2004
  2. jcsd
  3. Nov 30, 2004 #2


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    Is that +18 or -18 ?

    You're right if it's +18 and the RHS of the equation is " = 0 ".
    Last edited: Nov 30, 2004
  4. Nov 30, 2004 #3
    Yes sorry the equation was =-18
    Thanks for checking :smile:
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