7400200045

Question: 
Selecciona todas las expresiones no negativas con coeficientes binomiales.
Project ID: 
7400200045
SubArea: 
Answer 1: 
(40)(41)+(42)(43)
Answer 1 Correct: 
0
Answer 2: 
(64)(62)+(65)(66)
Answer 2 Correct: 
1
Answer 3: 
(123)+(127)(125)(129)
Answer 3 Correct: 
1
Answer 4: 
(141)(64)(62)(1413)
Answer 4 Correct: 
0
Answer 5: 
(73)+(50)(54)(74)
Answer 5 Correct: 
0
Answer 6: 
(104)(53)+(106)(52)
Answer 6 Correct: 
1
Answer 7 Correct: 
0
Answer 8 Correct: 
0