SOLUTION: (4.2X10^3)(1.5X10^6) i need this put into scienific notation and how the steps to doing it?

Question 233273: (4.2X10^3)(1.5X10^6) i need this put into scienific notation and how the steps to doing it?

Answer by jsmallt9(3759) (Show Source): You can put this solution on YOUR website!
(4.2X10^3)(1.5X10^6)
Since the only operation here is multiplication and since multiplication is Commutative and Associative, we can reorder and regroup this as we choose. So I can rewrite this expression in this way:

Now I'll multiply the first pair and the last pair of numbers. On the last pair, I will use the rule for exponents:

which simplifies to

This is the answer. Most of time scientific notation is written with a little "x" between the two numbers so I'll go ahead and put one in:
x
Since we have a number between 1 and 10 in front and a power of ten in the back, this is proper scientific notation.
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