document.write( "Question 342932: I have some factoring problems.. I have solved some, but the others just dont work.\r
\n" ); document.write( "\n" ); document.write( "3x(a-3)-5(3-a) I don't even know where to start, it looks factored to me?\r
\n" ); document.write( "\n" ); document.write( "20x^2-7x-6. I have tried about every different combination I can for foil for this one, it just does not work itself out.. It is driving me CRAZY!!!\r
\n" ); document.write( "\n" ); document.write( "4x^4 + 12x^3- 28x^2. I don't even know where to start to be honest. Is this a foil problem?\r
\n" ); document.write( "\n" ); document.write( "Thank you for your time..I can not tell you how valuable this site has been to me. \n" ); document.write( "
Algebra.Com's Answer #245428 by nyc_function(2741)\"\" \"About 
You can put this solution on YOUR website!
The expression 3x(a-3)-5(3-a) becomes 3x(a-3)-5(3-a) after using the distributive rule.\r
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\n" ); document.write( "\n" ); document.write( "20x^2 - 7x - 6 factors out to be (5x+2)(4x-3). To factor this one, I used the GROUPING METHOD.\r
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\n" ); document.write( "\n" ); document.write( "4x^4 + 12x^3- 28x^2 factors out to be 4x^2(x^2 + 3x - 7). To factor this one, I needed to do some extra substitutions in terms of letting y = x^2.\r
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\n" ); document.write( "\n" ); document.write( "Done!
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