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09162010  #1 
Join Date: Sep 2010
Posts: 1

help
Point M is between L and N on LN. Find LM and MN. LM=x^2, MN=x, and LN=12. i have no clue how to solve please help

09162010  #2 
Join Date: Mar 2005
Posts: 10,648

If LM=x^2, MN=x, and LN=12, then
x^2 + x = 12 Manipulative into quadratic form. x^2 + x  12 = 0 Factor products of trinomal. (x + 4) (x  3) = 0 Solve. x = 4 or x = 3 Eliminate negative length. x = 3
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