I have 2 questions that i have doubt in.
Its from exponents and power lesson, 8th grade. Please help, it's urgent.
The picture below are the questions. Thanks alot.
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a) (1/9)^7 × 9^5 ÷ 9²
= (1/9)^7 × 9³
= (9)^-7 × 9³
= (9)^-4
= (1/9)⁴
b) (4/9)^-2 × (9/4)^-7 ÷ (4/9)^7
= (4/9)^-2 × (4/9)^7 ÷ (4/9)^7
= (4/9)^-2 × (4/9)^0
= (4/9)^-2 × 1
= (4/9)^-2
= (9/4)² .
Hope it's helpful to you.
Please mark as Brainlist answer.
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