document.write( "Question 568532: Which of the following is NOT included in the domain of f(x)=6x+2 divided by x square-9? a.3 b.-3,3 c.9 d.-3 \n" ); document.write( "
Algebra.Com's Answer #367007 by jim_thompson5910(35256)\"\" \"About 
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Since you CANNOT divide by zero, this means that x^2-9 cannot be zero. Notice how x=-3 and x=3 make x^2-9 zero. So they are NOT in the domain.\r
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