document.write( "Question 813681: The legs of a right triangle are 4 cm and x cm. The hypotenuse is (2x-1) cm. What is x? I know the answer to this question is 3 but what I can't figure out is how that solution was achieved. I tried setting up the equation like $\"+4x%5E2%2Bx%5E2=%282x-1%29%5E2\"$ but got the wrong answer. Can you help? \n" ); document.write( "

Algebra.Com's Answer #489872 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "The legs of a right triangle are 4 cm and x cm. The hypotenuse is (2x-1) cm.
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document.write( "   | NOte:  16
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document.write( "    3x^2 -4x - 15= 0
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document.write( "Solved by pluggable solver: SOLVE quadratic equation with variable
Quadratic equation  (in our case ) has the following solutons:
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document.write( "  For these solutions to exist, the discriminant  should not be a negative number.
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document.write( "  First, we need to compute the discriminant : .
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document.write( "  
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document.write( "  Discriminant d=196 is greater than zero. That means that there are two solutions: .
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document.write( "    Quadratic expression  can be factored:
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document.write( "  Again, the answer is: 3, -1.66666666666667.\n" );
document.write( "Here's your graph:
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