Square Roots

1
Square Roots

• Applied Math 2
• 11/2/7

2
Square roots

• We learned the other day about exponents.
• Using what we learned please solve
• 52 32 122

3
Square roots

• Raising a number to the second power is called
  SQUARING the number.

4
Square roots

• When we find a SQUARE ROOT we are doing the
  opposite of finding the square of a number.
• The symbol for square root is

5
Square roots

• Just like addition and subtraction are opposites
  so
• if 1 3 4 then 4 3 1
• finding a square and a square root are opposite
  so if
• 32 9 then

6
Square Roots

• To find a square root in your calculator
• Enter the number you want the square root of
• Then hit the Blue Key
• Then hit the x2 Button (this selects the square
  root which is written above the x2 button in blue
• Then hit enter

7
Square Roots

• Try these