Asked by jas

which expression is not equivalent to 1/343


7^4 * 7^-7

7^7 * 7^-10

7^2 * 7^-5

7^-5 * 7^2
Answered by jas
i just tried it and got D is this correct ?
Answered by Reiny
correct,
btw, c) and d) are the same answer
Answered by jas
oh ok thank you
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