SOLUTION: i don not understand this could you help me? my paper says simplify the expression. write your answer using exponents. 5^4 x 5^8

Algebra ->  Exponents-negative-and-fractional -> SOLUTION: i don not understand this could you help me? my paper says simplify the expression. write your answer using exponents. 5^4 x 5^8      Log On


   

Question 233904: i don not understand this could you help me? my paper says simplify the expression. write your answer using exponents. 5^4 x 5^8
Found 2 solutions by Alan3354, stanbon:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
5^4 x 5^8
Use * for multiply to avoid confusion with x, the variable.
5%5E4%2A5%5E8
Add exponents when multiplying
= 5%5E%284%2B8%29
= 5%5E12

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
i don not understand this could you help me? my paper says simplify the expression. write your answer using exponents. 5^4 x 5^8
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5^4 means 5*5*5*5
5^8 means 5*5*5*5*5*5*5*5
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So 5^4*5^8 = 5^(4+8) = 5^12
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Cheers,
Stan H.