EXAMPLE 4 Multiplying Numbers in Scientific Notation Find the product (4.5 10 3 ) (6.3 10 7 ). = 4.5 6.3 10 3 10 7 (4.5 6.3) (10 3 10 7 ) = = 28.35 10.

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EXAMPLE 4 Multiplying Numbers in Scientific Notation Find the product ( ) ( ). = ( ) ( ) = = = = Product of powers property Write in scientific notation. Product of powers property Commutative property of multiplication Associative property of multiplication

GUIDED PRACTICE for Example 4 Write the product in scientific notation ( ) ( ) 17. =

GUIDED PRACTICE for Example 4 Write the product in scientific notation = 18. ( ) ( )