document.write( "Question 491328: The area of a rectangle is represented by x2-4, and a pair of consecutive sides are measured x+4 and x-3. What is the area of the rectangle? \n" ); document.write( "
Algebra.Com's Answer #334586 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! The area of a rectangle is represented by x^2-4, and a pair of consecutive sides are measured x+4 and x-3. What is the area of the rectangle? \n" ); document.write( ". \n" ); document.write( "Solve for x: \n" ); document.write( "(x+4)(x-3) = x^2-4 \n" ); document.write( "FOIL left side: \n" ); document.write( "x^2-3x+4x-12 = x^2-4 \n" ); document.write( "x^2+x-12 = x^2-4 \n" ); document.write( "x-12 = -4 \n" ); document.write( "x = 8 \n" ); document.write( ". \n" ); document.write( "Area was given as: \n" ); document.write( "x^2-4 \n" ); document.write( "plug in our value of x: \n" ); document.write( "8^2-4 \n" ); document.write( "64-4 \n" ); document.write( "60 square units (answer)\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |