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11 September, 19:28

Solve: 4x^-2 - 3x^-1 - 1 = 0

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Answers (1)
  1. 11 September, 23:05
    0
    X = 1 or X = - 4

    Step-by-step explanation:

    Let's solve your equation step-by-step.

    4x-2-3x-1-1=0

    -x2-3x+4

    x2

    =0

    Step 1: Multiply both sides by x^2.

    -x2-3x+4=0

    (-x+1) (x+4) = 0 (Factor left side of equation)

    -x+1=0 or x+4=0 (Set factors equal to 0)

    x=1 or x=-4

    Check answers. (Plug them in to make sure they work.)

    x=1 (Works in original equation)

    x=-4 (Works in original equation)
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