document.write( "Question 901335: My question for homework is:
\n" ); document.write( "Find the value of x for which (x + 2) cm, (2x + 3) cm and (2x + 5) cm are the three sides of a right-angled triangle.\r
\n" ); document.write( "\n" ); document.write( "I have already tried to add all of the sides together but then I realized there was nothing i could put as the total. As well as this I have already tried to times all of the sides together and that didn't really work either. I'm quite confused and was wondering if you could help, thank you!
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Algebra.Com's Answer #546678 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
Pythagorean Theorem: a^2 + b^2 = c^2
\n" ); document.write( "(x+2)^2 + (2x+3)^2 = (2x+5)^2 solve for x
\n" ); document.write( "5x^2 + 16x + 13 = 4x^2 + 20x + 25
\n" ); document.write( "x^2 -4x - 12 = 0
\n" ); document.write( "(x-6)(x+2) = 0 (Tossing out the negative solution for unit measure)
\n" ); document.write( "x = 6checking...
\n" ); document.write( "64 + 225 = 289
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