solve this equations for all real solutions 3t^2+4t+8=-6t

Question

solve this equations for all real solutions 3t^2+4t+8=-6t

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Lyla 2 months 2021-10-15T09:20:04+00:00 1 Answer 0 views 0

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    2021-10-15T09:21:51+00:00

    Answer:

    t= -1.33 recurring and -2

    Step-by-step explanation:

    3t²+4t+8=-6t

    3t²+4t+6t+8

    3t²+10t+8

    This is a quadratic equation, it can be solved by using either factorisation, completing the square method or formulae method. For the purpose of this question, I would be using the formulae method.

    -b±√(b²-4ac)/2a

    Where a=3, b= 10 and c=8

    -10±√(10²-4(3)(8))/2(3)

    -10±√(100-96)/6

    (-10±√4)/6

    (-10±2)/6

    -10+2/6 or -10-2/6

    -8/6 or -12/6

    -1.3333 recurring or -2

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