document.write( "Question 135843: Divide:
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document.write( "x2 – 9x + 20 ÷ x2 – 16
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document.write( " 3x – 15 9x + 36\r
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Algebra.Com's Answer #99521 by AlexxsDad(4)![]() ![]() ![]() You can put this solution on YOUR website! I think you may have mis-typed the second problem. I don't see what's being divided. But I will help you with the first problem. Your problem is:\r \n" ); document.write( "\n" ); document.write( "{x^2 - 9x + 20} / {x^2 - 16}\r \n" ); document.write( "\n" ); document.write( "This is best solved by factoring both sides.\r \n" ); document.write( "\n" ); document.write( "First the dividend (the left side): X^2 - 9x + 20 = {x-4}{x-5}\r \n" ); document.write( "\n" ); document.write( "Then the divisor: {x^2 - 16} = {x+4}{x-4} \n" ); document.write( "(this one is \"difference of squares\" factoring)\r \n" ); document.write( "\n" ); document.write( "So once factored, your original problem is re-written as such:\r \n" ); document.write( "\n" ); document.write( "{{x-4}{x-5}} / {{x+4}{x-4}}\r \n" ); document.write( "\n" ); document.write( "Clearly, the {x-4} cancels on both sides, leaving the answer: {x-5} / {x+4} \n" ); document.write( " |