document.write( "Question 639304: How do I factor 25y^2 - 10y + 1? \r
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document.write( "I thought it was a perfect square trinomial, but that doesn't make sense because of the + 1. And I tried factoring it out by taking 5y out, but that doesn't match the answer in the back of my book. I don't know how they got that answer. The answer to the question is (5y - 1)^2. \n" );
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Algebra.Com's Answer #402675 by aquyu214(10)![]() ![]() ![]() You can put this solution on YOUR website! (5y)^2-2*(5y)*1+1^2 \n" ); document.write( "fit the model that a^2-2ab+b^2=(a-b)^2, that a here is 5y, b here is 1 \n" ); document.write( "so that the answer should be (5y-1)^2 \n" ); document.write( " |