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10 November, 11:08

Solve x2 - 64 = 0.

1. Isolate x2x2 = 64

2. Apply the square root property of equality: x2 = + / 64

3. Isolate the variable:

+5
Answers (1)
  1. 10 November, 11:17
    0
    The value of x is - 8 and 8

    Step-by-step explanation:

    By following the steps you had given:

    1.

    x² - 64 = 0

    x² = 64

    2.

    x² = 64

    x = + -√64

    3.

    x = + √64

    = + 8

    x = - √64

    = - 8
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