SOLUTION: Could someone please tell me if these problems are correct. I am working on a test and I am unsure. Multiply and simplify. (7y)^7*(7y)^4 Answer y^11 s^3+14s^2+49s Answer s(s+7)^2

Question 190500: Could someone please tell me if these problems are correct. I am working on a test and I am unsure. Multiply and simplify. (7y)^7*(7y)^4 Answer y^11 s^3+14s^2+49s Answer s(s+7)^2 Simplify the expression (6^7)^4 Answer 10^21 Simplify: 1/3^-4 Answer 81. I am not sure about this can you explain d^3 when d=4. Please help! Thank you!
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Could someone please tell me if these problems are correct.
I am working on a test and I am unsure.
Multiply and simplify. (7y)^7*(7y)^4 Answer y^11
It's (7y)^11
---------------
s^3+14s^2+49s Answer s(s+7)^2 Looks right.
--------------------
Simplify the expression (6^7)^4 Answer 10^21
This is 6^28
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Simplify: 1/3^-4 Answer 81. Looks right.
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I am not sure about this can you explain d^3 when d=4.
d^3 when d=4 is 4^3
4^3 = 64

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