document.write( "Question 186813: Translate the folowing into a quadratic equation, and solve it: The length of a rectangular garden is four times its width; if the area of the garden is 196 square meters, what are its dimensions? \n" ); document.write( "
Algebra.Com's Answer #140042 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Translate the following into a quadratic equation, and solve it: \n" ); document.write( "The length of a rectangular garden is four times its width; \n" ); document.write( "if the area of the garden is 196 square meters, what are its dimensions? \n" ); document.write( ": \n" ); document.write( "See how easy this is: \n" ); document.write( ": \n" ); document.write( "Let x = the garden width \n" ); document.write( "and \n" ); document.write( "4x = garden length \n" ); document.write( "then \n" ); document.write( "x(4x) = 4x^2 = garden area \n" ); document.write( ": \n" ); document.write( "Given the area as 196 sq/meters \n" ); document.write( "; \n" ); document.write( "4x^2 = 196 \n" ); document.write( "4x^2 - 196 = 0; a quadratic equation, also the difference of squares, so we have: \n" ); document.write( "(2x-14)(2x+14) \n" ); document.write( "Positive solution: \n" ); document.write( "2x = +14 \n" ); document.write( "x = \n" ); document.write( "x = 7 m is the width \n" ); document.write( "and \n" ); document.write( "4(7) = 28 m is length \n" ); document.write( "; \n" ); document.write( "; \n" ); document.write( "Check: 7 * 28 = 196 \n" ); document.write( " |