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Ilya [14]
3 years ago
6

Explain why the expression 7*3^x is not equal to the expression 21^x

Mathematics
1 answer:
mina [271]3 years ago
5 0
According to the order of operations, exponents must be evaluated before multiplication.

Here's and example where x=2.
7*3^2
7*9
63

21^2=441

63 does not equal 441
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