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10 December, 04:21

How would you complete the square on the left side of this equation? x^2-6x=15 A. Add 6 to both sides of the equation. B. Subtract 6 from both sides of the equation. C. Add 9 to both sides of the equation. D. Subtract 9 from both sides of the equation.

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Answers (2)
  1. 10 December, 05:13
    0
    C

    Step-by-step explanation:

    x²-6x+9=15+9

    /[ (x-3) ²=24/]

    x-3±2√6

    x=3±2√6
  2. 10 December, 06:04
    0
    The answer to your question is letter C

    Step-by-step explanation:

    x² - 6x = 15

    Process

    1. - Divide the middle term by 2

    -6 / 2 = - 3

    2. - Add the result to both sides

    x² - 6x + (-3) ² = 15 + (-3) ²

    3. - Simplify

    x² - 6x + 9 = 15 + 9

    4. - Conclusion

    Add 9 to both sides of the equation
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