mathisfun14 mathisfun14

11-02-2018
Mathematics

contestada

Prove that: 7^16+7^14 is divisible by 50.

Answer should be in this format :
_____ * 50

Respuesta :

tynollette tynollette

11-02-2018

7^16 can be written as 7²×7^14=49×7^14
7^16+7^14=49×7^14+7^14=(49+1)×7^14=50×7^14, which can be divided by 50
put 7^14 in the blank.

Answer Link

konrad509 konrad509

04-08-2018

[tex] 7^{16}+7^{14}=7^{14}(7^2+1)=7^{14}\cdot50 [/tex]

Answer Link

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