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amw32906
31.03.2020 •
Mathematics
What is the answer to (12^2)^3 times 12^-4
and 12^7 times 12^-5 over 12^2
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Ответ:
12² = 144
12² ÷ 12² = 1
Step-by-step explanation:
I'll go through it backwards: 12^7 times 12^-5 You subtract the -5 from 7 in the exponents to get 12^2. 12^2 divided by 12^2 is 1.
(12^2)^3 works out to 12^6 because you multiply the exponents when its a power raised by a power. Then you subtract the 4 from the 6 (or add -4 +6) to get 12^2.
That means 12 squared, same as 12 times 12
That's 144.
If you have to multiply the two parts together, It's 144 times 1.
If "and" means "add them together"-- YOU KNOW!
Ответ: