Answer:
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Step-by-step explanation:
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9m⁸n²
(3m⁴n)² Remove parentheses
= 3²m⁸n² Square the 3
= 9m⁸n²
about 14, it's hard to see
if i didn't understand it wrong, * is (3-5) x (2)
so,
(3-5)x 2-16-2
=-2x2-16-2
=-4-16-2
= -22
But if * means (3-5)^2 -16-2
then its,
(3-5)^2-16-2
=(-2)^2 -18
=4-18
= - 14
But looks like both of them are not in your choice at all
