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2,6,12,20,30, ,56 what is the value in the blank in this sequence?

can you tell me the solution and answer, please?

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Liam M. | British Qualified Elementary School TeacherBritish Qualified Elementary School Teac...
5.0 5.0 (50 lesson ratings) (50)

John has it right. The difference between each number increases  by 2 each time. Figure out what 30 + 12 is and see if that number fits the pattern (56-14)

John R. | Physics and Math Tutor – Kind, Easy-going, PatientPhysics and Math Tutor – Kind, Easy-goin...
4.8 4.8 (138 lesson ratings) (138)
The difference between the first and second numbers is 4, between the second and third is 6, between the third and fourth is 8. What do you notice about this? Is it a pattern that continues?