SOLUTION: I need help. Calculate. (5 * 10^4)^2 Write answer in scientific notation.

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Question 187677: I need help.
Calculate.
(5 * 10^4)^2
Write answer in scientific notation.

Found 2 solutions by stanbon, jim_thompson5910:
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
Calculate.
(5 * 10^4)^2
Write answer in scientific notation.
-------------------
= 5^2 * 10^8
= 25*10^8
= 2.5x10^9
================
Cheers,
Stan H.

Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
Start with the given expression.


Rewrite 5 as


Multiply the outer exponent by EVERY exponent inside the parenthesis.


Multiply the exponents.


Square 5 to get 25


Factor 25 into (ie convert 25 to scientific notation)


Multiply and by adding the exponents.


Add


So

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