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2014-06-14T16:13:28+03:00
X²-5x+6=(x-3)(x-2)
x²-4x+4=(x-2)²
relatia data devine
 \frac{x-3}{x-2} = \frac{x+a}{x+b}
a=-3
b=-2
a+b=-5∈Z
1 5 1