Show that 8^3 − 1 is divisible by 7.

Mathematics

1 answer:

Brilliant_brown [7]3 years ago

7 0

Answer:

8•8=64•8=512-1=511÷7=73

Step-by-step explanation:

8 to the power of 3 is divisible by 7 because if the result is a real number, then you got it correct. We got a whole number here, so it was easier but if you get decimals, it takes more work. Well, there's your answer, hope it helped!!!

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Read 2 more answers

Solve for x. Show each step of the solution. 4.5(8−)+36=102−2.5(3+24) i need to show my work dont just give me the answer

elena-s [515]

4.5 * (8-) + 36 = 102 - 2.5 * 27
4.5 * 8 - 36 = 102 - 2.5 * 27
36 - 36 = 102 - 2.5 * 27
36 - 36 = 102 - 67.5
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Since we know 36 - 36 doesn't equal 34.5 its not true so there is NO ANSWER.