Powers and Roots

Powers

• The number 5^2 is read "five squared" or "five to the second power".
• The exponent tells you to multiply the base number times itself the number the exponent indicates
• Note: Please be careful not to confuse this with 5*2

Powers Example

• Ex: 5^3 is "five cubed" or "five to the third"
• 5^4 is "five to the forth"
• 5^5 is "five to the fifth"
• 5^6 is "five to the sixth"

Powers Example

• 5^2 means 5 times itself or 5*5=25
• Ex: 5^3=5*5*5=125
• 2^4=2*2*2*2=16
• .3^4=.3*.3*.3*.3=.027
• (2/3)^2=2/3*2/3=4/9
• (1/2)^4=1/2*1/2*1/2*1/2=1/16
• r^2=rxr

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