document.write( "Question 602819: The area of a square is (4x^2-12x+9) sq.cm.The width of a rectangle is five cm greater than a side of the square while the length of the rectangle is twice the side of the square.What is the area, in sq.cm. of the rectangle? please show me the steps.\r
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document.write( "A.16x^2-12x-14
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document.write( "B.8x^2+10x-12
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document.write( "C.4x^2-8x-16
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document.write( "D.4x^2+2x-2
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document.write( "E.None of these \n" );
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Algebra.Com's Answer #380412 by flame8855(424)![]() ![]() You can put this solution on YOUR website! 4x^2-12x+9 is the area of the square \n" ); document.write( "4x^2-12x+9= s^2 = (2x-3)^2 \n" ); document.write( "so the side of the square is 2x-3 \n" ); document.write( "the width = 2x-3+5=2x+2 \n" ); document.write( "the length = 2(2x-3)=4x-6 \n" ); document.write( "area= L*W= (2x+2)(4x-6)= 8x^2-12x+8x-12= 8x^2-4x-12 \n" ); document.write( "so none of the above \n" ); document.write( " \n" ); document.write( " |