The three sides of a right triangle measures x, x+1 and 5. What is the value of x?
Really need help :(
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It's obvious that it is 3,4,5
OR
x^2 + (x+1)^2 = 25
x^2 + x^2 + 1 + 2x = 25
2x^2 + 2x -24 = 0
x^2 + x -12 = 0
x^2 +4x - 3x -12 = 0
x( x+4) -3( x+4) = 0
take positive So x= 3
So 3,4,5
OR
x^2 + (x+1)^2 = 25
x^2 + x^2 + 1 + 2x = 25
2x^2 + 2x -24 = 0
x^2 + x -12 = 0
x^2 +4x - 3x -12 = 0
x( x+4) -3( x+4) = 0
take positive So x= 3
So 3,4,5
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