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Mathematics

4x2 - 9 = 0 implies x is equal to :

  1. 32\dfrac{3}{2}

  2. 94\dfrac{9}{4}

  3. −32-\dfrac{3}{2}

  4. ±32\pm \dfrac{3}{2}

Quadratic Equations

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Answer

Given,

⇒ 4x2 - 9 = 0

⇒ 4x2 = 9

⇒ x2 = 94\dfrac{9}{4}

⇒ x = 94=±32\sqrt{\dfrac{9}{4}} = \pm \dfrac{3}{2}

Hence, Option 4 is the correct option.

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