1.2 Exponents and Powers An expression like is called a. The 3 represents the number of times the 2 is used as a factor. power exponent base.

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Presentation transcript:

1.2 Exponents and Powers An expression like is called a. The 3 represents the number of times the 2 is used as a factor. power exponent base

Examples ExponentialFormWordsMeaning four to the second power or four squared Five to the third power or five cubed X to the sixth power

Practice A. 3 squared B. x to the fourth power C. s cubed

Evaluate the Power D) Evaluate when x = 2 16

Grouping Symbols -Indicate the order in which the operations should be performed. -Operations within the innermost set of grouping symbols are done first -( ) parentheses -[ ] brackets

Evaluate Exponents a = 1 and b = 2 E. 5

Practice F) a = 1 b = 2 B. (a + b)

Exponents and Grouping G) x = 4 a). b).

Real-Life Applications Exponents are often used in the formulas for area and volume. Squared and Cubed Area and Volume

Finding Volume An aquarium has the shape of a cube. Each edge is 2 feet long. a.Find the volume in cubic feet.