document.write( "Question 681477: one number is equal to the square of another. Find the numbers if both are positive and their sum is 12 \n" ); document.write( "
Algebra.Com's Answer #422794 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! one number is equal to the square of another. \n" ); document.write( "x = y^2 \n" ); document.write( ": \n" ); document.write( " Find the numbers if both are positive and their sum is 12 \n" ); document.write( "x + y = 12 \n" ); document.write( "replace x with y^2, you have a quadratic equation \n" ); document.write( "y^2 + y - 12 = 0 \n" ); document.write( "Factors to \n" ); document.write( "(y+4)(y-3) = 0 \n" ); document.write( "The positive solution is all they want here \n" ); document.write( "y = 3 \n" ); document.write( "then \n" ); document.write( "x = 3^2 \n" ); document.write( "x = 9 \n" ); document.write( "; \n" ); document.write( "they add up to 12 \n" ); document.write( " |