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1 December, 05:12

If (x + 1) (x-3) = 5, then which of the following statements is true?

x+1=5 or X-3 = 5

x-4 = 0 or x + 2 = 0

x + 1 = 0 or X-3 = 0

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Answers (1)
  1. 1 December, 05:58
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    x=-2 or x=4

    Step-by-step explanation:

    Step 1: Simplify both sides of the equation.

    x2-2x-3=5

    Step 2: Subtract 5 from both sides.

    x2-2x-3-5=5-5

    x2-2x-8=0

    Step 3: Factor left side of equation.

    (x+2) (x-4) = 0

    Step 4: Set factors equal to 0.

    x+2=0 or x-4=0

    x=-2 or x=4
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