document.write( "Question 371490: i have a triangle ABC a= 2x+5 b= 3x-7 C= x+38 \n" ); document.write( "
Algebra.Com's Answer #264622 by amoresroy(361) You can put this solution on YOUR website! i have a triangle ABC a= 2x+5 b= 3x-7 C= x+38\r \n" ); document.write( "\n" ); document.write( "By pythagorean formula\r \n" ); document.write( "\n" ); document.write( "a^2 + b^2 = c^2 \n" ); document.write( "(2x+5)^2 + (3x-7)^2 = (x+38)^2 \n" ); document.write( "4x^2+20x+25 +9x^2-42x+49 = x^2+76x+1444 \n" ); document.write( "combine like terms \n" ); document.write( "12x^2 -98x - 1370 = 0 \n" ); document.write( "solve using quadratic formula \n" ); document.write( "x = [98 +/- (98^2 -4(12)(-1370))^.5/24 \n" ); document.write( "x = [98 +/1 (75,364)^.5]24 \n" ); document.write( "x = (98 +/- 274.5)/24\r \n" ); document.write( "\n" ); document.write( "x = 15.52 \n" ); document.write( "The value of x = 15.52 \n" ); document.write( "a = 2(15.52) +5 = 36.04 \n" ); document.write( "b = 3(15.52)-7 = 39.56 \n" ); document.write( "c = 15.52+38=53.52 \n" ); document.write( " |