Mathematics, 21.07.2019 06:00 itssssramirez201

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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Which expressions are equivalent to the one below? check all that apply. 21^x/7x a. 3^x-7 b. 3 c....