document.write( "Question 329114: the area of a 6cm by 4m rectangle is to be doubled. by what equal amount must each dimension be increased \n" ); document.write( "
Algebra.Com's Answer #235830 by mananth(16946) You can put this solution on YOUR website! Area of rectangle = 6*4 = 24 m^2 \n" ); document.write( ". \n" ); document.write( "(let it be increased by x m \n" ); document.write( "(x+6)(x+4)=48 \n" ); document.write( "x^2+10x+24=48 \n" ); document.write( "X^2+10x-24=0 \n" ); document.write( "X^2+12x-2x-24=0 \n" ); document.write( "x(x+12)-2(x+12)=0 \n" ); document.write( "(x+12)(x-2)=0 \n" ); document.write( "x= 2 m \n" ); document.write( "Ignore the negative value of x=-12 \n" ); document.write( " |