Below is a right-angled triangle. The shorter leg measures x, the longer leg measures x+1, and the hypotenuse measures x+2.
Calculate the value of X.
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Answer:
3 or -1
Step-by-step explanation:
according to pythagoras theorem,
hypotenuse²=base²+height²
(x+2)²=x²+(x+1)²
x²+4x+4=x²+x²+2x+1
x²+4x+4=2x²+2x+1
x²+4x+4-2x²-2x-1=0
-x²+2x+3=0
x²-2x-3=0
x²-3x+x-3=0
x(x-3)+1(x-3)=0
(x-3)(x+1)=0
x=3 or x=-1
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