document.write( "Question 547282: \r
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document.write( "find the domain of f(h(x))\r
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document.write( "I have no clue thanks bunches for help
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Algebra.Com's Answer #356324 by mathie123(224)![]() ![]() ![]() You can put this solution on YOUR website! To find f(h(x)), we need to plug in h(x) for any x we see in f(x). This leaves:\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "We could expand this... though it is not needed and will take some time. Instead, we know that there is no limitations on x in the numerator. But we do know that when there is a fraction, the denominator cannot be equal to 0. \n" ); document.write( "This means that \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Well... when does this expression equal 0. In other words, lets solve: \n" ); document.write( " \n" ); document.write( "Again, we can expand this, or we could see that each term has a common factor of (6x+2) and factor this out. This leaves: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If two things multiply to give a product of 0, then at least one of them must be 0. This means \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "or \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "This means x can be anything except \n" ); document.write( "\n" ); document.write( "Hopefully this helps! Please let me know if you still do not understand:) \n" ); document.write( " |