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03-02-2019
Mathematics

contestada

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Respuesta :

03-02-2019

Answer:

117649

Step-by-step explanation:

First lets evaluate the parts:

7^8 = 5764801

7^7 = 823543

7^6 = 117649

adding and subtracting these 3 values as stated in the expression results in 5058907 which when divided by 43 is 117649.

While there is probably a faster way to do this, this does work.

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