Solve for x by completing the square. Round ur answer to the nearest thousandth. X^2+6x-3=0

Question

Solve for x by completing the square. Round ur answer to the nearest thousandth. X^2+6x-3=0

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Neala 5 months 2021-08-23T11:06:06+00:00 2 Answers 2 views 0

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  1. thienan
    0
    2021-08-23T11:07:12+00:00
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    Answer:

    • x = {2.196,  -8.196}

    Step-by-step explanation:

    • x² + 6x – 3 = 0
    • x² + 2*3*x + 3² – 3 = 3²
    • (x + 3)² = 12
    • x + 3 = ± √12
    • x + 3 = ± 2√3
    • x = 2.196, x = -8.196
  2. Helga
    0
    2021-08-23T11:08:04+00:00
    Reply

    Answer:

    . X^2+6x-3=0

    x²+6x+9-9-3=0

    (x+3)²=12

    x+3=√12

    x=√12-3=0.46410161513

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )