document.write( "Question 381022: Set up a equation and solve the problem: One positive number is 4 larger than another number and the sum of their square is 136. Find the numbers? I am having a hard time with this one. I hope you can help. Thanks \n" ); document.write( "
Algebra.Com's Answer #270370 by ptaylor(2198)![]() ![]() You can put this solution on YOUR website! Let x=first positive number \n" ); document.write( "Then x+4=the other positive number \n" ); document.write( "And we are told that: \n" ); document.write( "x^2+(x+4)^2=136 simplify \n" ); document.write( "x^2+x^2+8x+16=136 subtract 136 from each side and collect like terms \n" ); document.write( "2x^2+8x-120=0 divide each term by 2 \n" ); document.write( "x^2+4x-60=0----quadratic in standard form and it can be factored: \n" ); document.write( "(x+10)(x-6)=0 \n" ); document.write( "x=-10------no good! Problem specifies positive numbers \n" ); document.write( "x=6----The first positive number \n" ); document.write( "6+4=10 the second positive number \n" ); document.write( "CK\r \n" ); document.write( "\n" ); document.write( "6^2 + 10^2=136 \n" ); document.write( "136=136\r \n" ); document.write( "\n" ); document.write( "Hope this helps---ptaylor \n" ); document.write( " |