2 Answers

BytesGuy · Answer 1 · 2019-01-16T14:31:59+0000

The expression

${4}^(5) * {4}^( - 7) / {4}^( - 2)$
is the same as

$\frac{ {4}^(5) * {4}^( - 7) }{ {4}^( - 2) }$
Which, if we switch the negative exponents, equals

$\frac{ {4}^(5) * {4}^(2) }{ {4}^(7) }$
And if we combine them, they equal

$\frac{ {4}^(7) }{ {4}^(7) }$
Then we divide, and they equal

${4}^(0)$

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