document.write( "Question 205474: Suppose you need to construct a right triangle in which the shorter side is eight feet less than the longest side and the third side is seven feet more than the shortest side. \n" ); document.write( "
Algebra.Com's Answer #155111 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
a^2+b^2=c^2
\n" ); document.write( "a=c-8
\n" ); document.write( "b=a+7 or b=(c-8)+7 or b=c-1
\n" ); document.write( "(c-8)^2+(c-1)^2=c^2
\n" ); document.write( "c^2-16c+64+c^2-2c+1=c^2
\n" ); document.write( "2c^2-c^2-18c+65=0
\n" ); document.write( "c^2-18c+65=0
\n" ); document.write( "(c-13)(c-5)=0
\n" ); document.write( "c-13=0
\n" ); document.write( "c=13 ans.
\n" ); document.write( "a=13-8
\n" ); document.write( "a=5 ans.
\n" ); document.write( "b=5+7
\n" ); document.write( "b=12 ans.
\n" ); document.write( "Proof:
\n" ); document.write( "5^2+12*2=13^2
\n" ); document.write( "25+141=169
\n" ); document.write( "169=169
\n" ); document.write( "
\n" ); document.write( "
\n" );