Please help. pleasee

asked Apr 21, 2022 120k views

3 votes

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3 votes

Answer:

1st option

Explanation:

Using the rule of exponents

a^(m) ×
a^(n) ⇔
a^((m+n)) ( which can be used on more than 2 numbers )

Given

(- 7)² ×
(-7)^(5) ×
(-7)^(-9)

=
(-7)^((2+5-9))

=
(-7)^(-2)

Dkantowitz answered Apr 26, 2022

5.3k points

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