[tex]\sqrt{3 - 2\sqrt{2}}=\sqrt{2-2\sqrt{2}+1}[/tex]joris_pixie said:
phyzmatix said:
joris_pixie said:
A root of a real number is a number that, when multiplied by itself a certain number of times, gives the original number. For example, the square root of 25 is 5 because 5 multiplied by itself (5 x 5) equals 25.
A square root is a number that, when multiplied by itself, gives the original number. A cube root is a number that, when multiplied by itself twice, gives the original number. For example, the square root of 16 is 4 because 4 x 4 = 16. The cube root of 8 is 2 because 2 x 2 x 2 = 8.
To find the square root of a real number, you can use a calculator or estimate it by finding the closest perfect square that is less than the original number. Then, you can use long division or a similar method to find the square root.
The symbol for a square root is √ (called a radical symbol), which comes from the Latin word "radix" meaning "root".
Yes, negative numbers can have a square root. However, the result will be a complex number, which is a combination of a real number and an imaginary number. For example, the square root of -4 is 2i, where i is the imaginary unit (√-1).