document.write( "Question 139246: 1) A rectangular garden , with length three times its width, is to be expanded so that both sides are increased by 9 yards
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document.write( "A) f(x)= 4x + 18
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document.write( "B) f(x)= 3x^2 + 81
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document.write( "C) f(x)= 3x^2 + 36x + 81
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document.write( "D) f(x)= 3x^2 + 18x + 81 \n" );
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Algebra.Com's Answer #101640 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! if x=width, then C) is the area function\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "FOILing __ (x+9)(3x+9)=3x^2+27x+9x+81=3x^2+36x+81 \n" ); document.write( " |