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March 29, 2017

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t^4-40t^2+40=0

  • algebra - ,

    I will assume you are trying to solve.

    t^4-40t^2+40=0

    I first solved for t^2 using the quadratic formula
    to get t^2 = 20 +-√360
    both of which are positive
    then t = +-√(20 +-√360) which represents 4 answers

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