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Problem Solved asked in Science & MathematicsMathematics · 7 years ago

√(13-4x)=-3?

2 Answers

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  • DWRead
    Lv 7
    7 years ago
    Favorite Answer

    √(13-4x) cannot be -3. By definition, a square root is non-negative.

  • RAY G
    Lv 7
    7 years ago

    As D.W. says, it isn't a valid expression.

    √a is defined as the positive solution of x^2 = a

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