Question 466244
Simplying. Identify any x-values for which the expression is undefined: 
1.) 4x^2         2.) x+4          3.) 6x^2+7x-3  
   -----          --------            ---------
   2x-6           3x^2+11x-4            -3^2+x 
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Note: The denominators cannot be zero.
1.  x cannot be 3
2. Factors are (3x-1)(x+4); x cannot be 1/3 ; x cannot be -4
3. x cannot be 9
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Multiplying. Assume that all expreessions are defined.
1.) x-2    4x-6            2.) x^2-16     x-2       
   ---- X ----                -------- X --------
  2x-3    x^2-4               x^2-4x=4   x^2+6x+8
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1. Factor where you can:
[(x-2)/(2x-3)]*[2(x-3)/(x-2)(x+2)]
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Cancel factors common to a numerator and a denominator:
[1/(2x-3)]*[2(x-3)/(x+2)]
----
= [2(x-3)]/[(2x-3)(x+2)]
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etc.
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Cheers,
Stan H.
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 Dividing. Assume that all expressions are defined

Another thing, is there some kind of system where I can put symbols for dividing, multiplying, & a line where there's a equation that has a line in between, for example, 4  
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Just use 4/2