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26 June, 19:56

Find the sum and product of the roots. 3x^

2 - 4x - 7 = 0

+1
Answers (1)
  1. 26 June, 22:00
    0
    Given the quadratic function, to get the roots we factorize:

    3x²-4x-7=0

    3x²+3x-7x-7=0

    3x (x+1) - 7 (x+1) = 0

    (3x-7) (x+1) = 0

    thus the roots are

    x=-1 or x=3/7

    thus the sum of the roots will be:

    -1+3/7

    =-4/7
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