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2 March, 06:32

3x with a 2 as an exponent + 8x=35

+5
Answers (2)
  1. 2 March, 06:57
    0
    It is (-5) (7/3) that's the answer
  2. 2 March, 06:57
    0
    The roots are {-5, 7/3}.

    Step-by-step explanation:

    I am assuming you want to solve this for x.

    3x^2 + 8x = 35

    3x^2 + 8x - 35 = 0 Try factoring by the 'ac' method.

    ac = 3 * - 35 = - 105.

    We need 2 numbers whose product is - 105 and whose sum = + 8.

    These are + 15 and - 7, so we write:

    3x^2 + 15x - 7x - 35 = 0 Now factor by grouping:

    3x (x + 5) - 7 (x + 5) = 0 (x + 5) is common so:

    (3x - 7) (x + 5) = 0

    The roots are {-5, 7/3}.
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