document.write( "Question 541804: please help solve this: find the length of the hypotenuse of a right triangle whose sides are x,(x+1), and (x+3)cm. \n" ); document.write( "
Algebra.Com's Answer #354304 by Theo(13342)\"\" \"About 
You can put this solution on YOUR website!
the formula for the length of a right triangle is a^2 + b^2 = c^2
\n" ); document.write( "a and b are legs of the triangle.
\n" ); document.write( "c is the hypotenuse of the triangle.
\n" ); document.write( "you are given:
\n" ); document.write( "a = x
\n" ); document.write( "b = x+1
\n" ); document.write( "c = x+3
\n" ); document.write( "you need to solve for x.
\n" ); document.write( "the attached file shows the progression.
\n" ); document.write( "\"$$$$$\"
\n" ); document.write( "number 1 shows the formula used.
\n" ); document.write( "number 2 simplifies the equation by multiplying the factors shown.
\n" ); document.write( "number 3 simplifies further by combining like terms.
\n" ); document.write( "number 4 moves everything from the right hand side of the eqution to the left hand side of the equation.
\n" ); document.write( "number 5 combines like terms.
\n" ); document.write( "number 6 places 8 to the right hand side of the equation to prepare for solving by completing the squares method.
\n" ); document.write( "number 7 reformats the equation into completing the square form.
\n" ); document.write( "number 8 combines like terms.
\n" ); document.write( "number 9 takes the square root of both sides of the equation.
\n" ); document.write( "number 10 shows you the results of the operation.
\n" ); document.write( "i tested the results by subsituting for x in the original equation and it checks out so i'm reasonably sure this is the right answer.
\n" ); document.write( "you may want to simplify square root of 12 by showing it as 2 times the square root of 3 (see number 11 in the attached file).
\n" ); document.write( "instructions for completing the square method can be found at this website.
\n" ); document.write( "http://webgraphing.com/quadraticequation_completingthesquare.jsp
\n" ); document.write( "you select solving by completing the squares method and enter the equation of x^2 - 4x - 8 = 0 into the box provide and click on solve it and your answer plus step by step instructions shows up.
\n" ); document.write( "if you would rather read how to do it, then go to the following link.
\n" ); document.write( "http://www.purplemath.com/modules/solvquad3.htm for instructions.
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