document.write( "Question 598693: Help Please\r
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document.write( "1. Essay: Show all work. Find the following quotient: \r
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document.write( "64x^2 – 100 y^2
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document.write( " 8x + 10y\r
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document.write( "2. Short Answer. The length of the side of a rectangular desk is given by 2x - 6y cm. The length of the front is given by 2x + 6y cm. What is an algebraic expression for the area of the top of the rectangular desk? Include correct units as part of your answer. \n" );
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Algebra.Com's Answer #378707 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! (64x^2–100x^2)/(8x+10y) \n" ); document.write( "You should recognize the numerator as the \"difference of squares\"; can be factored to: \n" ); document.write( " \n" ); document.write( "Cancel out (8x+10y) leaving \n" ); document.write( "8x-10y \n" ); document.write( ": \n" ); document.write( "2. Short Answer. The length of the side of a rectangular desk is given by 2x - 6y cm. The length of the front is given by 2x + 6y cm. What is an algebraic expression for the area of the top of the rectangular desk? Include correct units as part of your answer. \n" ); document.write( ": \n" ); document.write( "A = L * W \n" ); document.write( "A = (2x-6y)*(2x+6y) \n" ); document.write( "FOIL \n" ); document.write( "A = 4x^2 + 12xy - 12xy - 36y^2 \n" ); document.write( "A = 4x^2 - 36y^2 sq/cm \n" ); document.write( " |