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30 January, 05:07

Solve for x. Write both solutions, separated by a

comma.

9x2 - 4x - 5 = 0

+2
Answers (2)
  1. 30 January, 06:14
    0
    x = - 5/9, x = 1
  2. 30 January, 06:22
    0
    Answer: - 5/9 or 1

    Step-by-step explanation:

    9x2-4x-5=0

    Factorise

    Factors of - 45 that will give-4 is - 9&5

    Substitute

    9x2-9x+5x-5=0

    9x (x-1) + 5 (x-1) = 0

    (9x+5) (x-1) = 0

    9x+5=0

    9x = - 5

    X = - 5/9 or

    X-1=0

    X=1

    X = - 5/9 or 1
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