bbookitDaishnabonu
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  • 11-06-2016
  • Mathematics
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Simplify sqrt(x^2-16)

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mpanderla95
mpanderla95 mpanderla95
  • 11-06-2016
Remember for this type of question.I'm guessing you make the equation equal to 0. Then square both sides the (X ^2-16) and 0. Then the square root goes away. Then you factor it according to the difference of squares method. By taking the square root of x^2 and 16. So ultimately it turns into 2 binomials according to the difference of squares method. The simplified answer would be (X-4)(X+4)=0. To solve for x in each case, take each respective equation separately and make it equal to 0. Solve for x.
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