Answers

  • Brainly User
2016-07-06T22:47:42+08:00
Solve by extracting the roots:

4x² - 16 = 0

4x² = 16

4x²/4 = 16/4

x² = 4

 \sqrt{ x^{2} } =  \sqrt{4}

x = +2  and -2
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