briizy
21.07.2019 •
Mathematics
Which expressions are equivalent to the one below? check all that apply. 21^x/7x a. 3^x-7 b. 3 c. 3^x d. (21-7)^x e. 7^x * 3^x/ 7^x f. (21/7)^x
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Ответ:
Ответ:
(4 * 2 - 4) + (3 - 2^2) + (2 * 2^3)
(8 - 4) + (3 - 4) + (16)
4 + -1 + 16 = 19