document.write( "Question 108826: We just started factoring polynomials and I don't understand how you can tell if a problem when you first look at it,doesn't have a greater common factor.For example my teacher had this one:21x-7 and another one was:x^9y^6-x^7y^5+x^4y^4+x^3y^3
\n" ); document.write( "This so confusing to me,if you could help I would really appreciate it.Thank you in advance JH \n" ); document.write( "

Algebra.Com's Answer #79345 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
When you look at each expression, are there common factors??
\n" ); document.write( " $\"21x-7=%283%2A7%29x-7=7%2A%283x-1%29\"$
\n" ); document.write( "In that example, the number 7 was commmon.
\n" ); document.write( "In the next example, it's powers of x and y.
\n" ); document.write( "Remember your exponent rules.
\n" ); document.write( " $\"Z%5Em%2AZ%5En=Z%5E%28m%2Bn%29\"$
\n" ); document.write( "Here's the equation.
\n" ); document.write( "What's the lowest power of x common to each expression?? $\"x%5E3\"$
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\n" ); document.write( "Similarly, what's the lowest power of y common to each expression?? $\"y%5E3\"$
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