Multiple Choice Question (MCQ)

What is the solution set to the equation 4+x^2=2x^2-5 ?

  1. ×

    \{x:x=3\}

  2. ×

    \{x:x=-3\}

  3. ✓

    \{x:x=\pm3\}

  4. ×

    \{x:x=-1\}

  5. ×

    \{x:x=1\}

Collected in the board: Algebraic equation

Steven Zheng posted 3 months ago


Answer

  1. 4+x^2=2x^2-5

    x^2=9

    x=\pm3

Steven Zheng posted 3 months ago

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