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21 April, 11:39

Solve the equation. Enter the answer in radical form, and then use a calculator to approximate the solution to two decimal places, if necessary.

(x + 5.6) 2 = 1.75

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Answers (2)
  1. 21 April, 11:50
    0
    x = - 5.6 ±sqrt (1.75)

    x≈-4.28 x≈-6.92

    Step-by-step explanation:

    (x + 5.6) ^2 = 1.75

    Take the square root of each side

    sqrt ((x + 5.6) ^2) = ±sqrt (1.75)

    x+5.6 = ±sqrt (1.75)

    Subtract 5.6 from each side

    x+5.6 - 5.6 = - 5.6 ±sqrt (1.75)

    x = - 5.6 ±sqrt (1.75)

    x = - 5.6 + sqrt (1.75) x = - 5.6 - sqrt (1.75)

    x≈-4.27712 x≈-6.92288

    x≈-4.28 x≈-6.92
  2. 21 April, 11:57
    0
    x = sqrt (1.75) - 5.6, - sqrt (1.75) - 5.6,

    x ≈ - 4.28, - 6.92

    Step-by-step explanation:

    (x + 5.6) ² = 1.75

    (x + 5.6) = + / - sqrt (1.75)

    x = + / - sqrt (1.75) - 5.6

    x ≈ - 4.28, - 6.92
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