Mathematics, 18.10.2019 04:30 mihir50

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richard simplified an expression in three steps, as shown: (picture is down below)

which is the first incorrect step and why?

a. step 1, all the exponents are multiplied by 3
b. step 2, the exponents in the denominator are multiplied
c. step 3, the exponents of the same base are subtracted during division
d. step 3, the exponents of the same base are added during division

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