Which of the following is equal to (1/4) * (20^8)? Options: 5^6 5^8 20^2 4*(20^7) 5(20^7) Sincerely, I'm not able to get any of the results offered... Thank you for your help!
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Originally Posted by artabro Which of the following is equal to (1/4) * (20^8)? Options: 5^6 5^8 20^2 4*(20^7) 5(20^7) Sincerely, I'm not able to get any of the results offered... Thank you for your help! $\displaystyle \frac{20^8}{4}=\frac{(4\cdot 5)^8}{4}=\frac{4^8\cdot 5^8}{4}=4^7\cdot 5^8=5(4^7\cdot 5^7)=$ ... Tonio
You can start by saying $\displaystyle 20^8 = (20)^8 = (4\times 5)^8 = 4^8\times 5^8$
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