What is the greatest common factor (GCF) of the numerator and denominator of the rational expression below?
5x - 20
x² – 2x-8

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Complete each statement from the information given and the triangle criterion you used. if the triangles cannot be shown to be congruent, leave the box for the second triangle blank and choose for reason “cannot be determined.” carbon - regular hexagon. ∆can ≅ ∆ by

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?