document.write( "Question 444213: How Do I Find Any Restricions on the varible.. for example im going to give you 3 random problems and one from my homework..
\n" ); document.write( " were learning something like this:\r
\n" ); document.write( "\n" ); document.write( "x^2 +7x +12 / x^2-9 : its random numbers .. do i simplify?, i dont understand?\r
\n" ); document.write( "\n" ); document.write( "this one is Alittle Harder this is from my homework because i dont understand this one . i did the rest butt this is a challengeing one he said :\r
\n" ); document.write( "\n" ); document.write( "(x+3)(2x-1) / x(x+4) Divided by (-x-3)(2x+1) / x i guess i dont understand because i guess it had the divistion in the middle,, then we have minus and plus.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "x^2-1/x^2+2x-3 - X-1/x^2-4\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "and ill use 2 4 and 1 for this + problem:\r
\n" ); document.write( "\n" ); document.write( "x(x+4)/x-2 + X-1/X^2-4 \r
\n" ); document.write( "\n" ); document.write( "Please help me this is my last hope i tried with my other answers and got them but i feel i need more practice and the one with the division is the only on i didn't do on my homework. please\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #306277 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
\n" );
document.write( "Hi
\n" );
document.write( "Finding Any Restrictions 
\n" );
document.write( "Note: generally the restrictions would be when the DENOMINATOR = 0
\n" );
document.write( "      as there can be NO zero in a denominator
\n" );
document.write( "   Restrictions:  x≠ 3 and x≠ -3
\n" );
document.write( "   Restrictions:  x≠ 0, -4,-3,-1/2
\n" );
document.write( "  Restrictions:  x≠ 2, -2
\n" );
document.write( "             Note: x^2-4 = (x-2)(x+2) \n" );
document.write( "

\n" );