Answers

2014-08-13T18:23:59+08:00
Exponent is the quantity representing the power to which given number.. Like this:

4^{2} =16

you solve square roots by this guide:

 \sqrt{16} =4
0
  • zzz
  • Helping Hand
2014-08-13T19:56:45+08:00
Exponent - the number usually a superscript, indicating the number of times a number is multiplied to itself.
Example:
5^3 = 5*5*5 = 125
2^4 = 2*2*2*2=16

Solving Square Roots
Square Root - the square root of x is a number y such that y^2 = x
Only Positive Numbers have Real number square roots
Negative Numbers have imaginary square roots
A positive number has two square roots, one POSITIVE and one NEGATIVE
 \sqrt{x} -> means principal or positive square root
- \sqrt{x} -> means negative square root
Example
 \sqrt{25} = 5
- \sqrt{25} = -5
 \sqrt{36} = 6
- \sqrt{36} = -6

Some number do not have whole number square roots, some numbers have radicals as square roots
Examples:
 \sqrt{2}  =  \sqrt{2} <-- remains the same
- \sqrt{2} =- \sqrt{2} <-- remains the same

For solving for square roos by trial and error, think of a number when multiplied to itself is that number
Example:
64, 8 because 8 x 8 = 64




0