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11 July, 01:55

Determine the factors of 3x^2 + 10x - 8.

(3x - 8) (x + 1)

(3x - 1) (x + 8)

(3x - 4) (x + 2)

(3x - 2) (x + 4)

+2
Answers (2)
  1. 11 July, 01:59
    0
    Option 4

    Step-by-step explanation:

    3x² + 10x - 8 = 3x² + 12x - 2x - 2*4

    = 3x (x + 4) - 2 (x + 4)

    = (x + 4) (3x - 2)
  2. 11 July, 02:14
    0
    (3x - 2) (x + 4).

    Step-by-step explanation:

    3x^2 + 10x - 8

    3 + - 8 = - 24.

    We need 2 numbers whose product is - 24 and whose sum is + 10.

    They are - 2 and 12, so we write:

    3x^2 + 12x - 2x - 8

    = 3x (x + 4) - 2 (x + 4)

    = (3x - 2) (x + 4).
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