Cube under root 2√2 +3√21 + cube √8-3√21
Answers
Example Cube Roots:
The 3rd root of 64, or 64 radical 3, or the cube root of 64 is written as 64−−√3=4.
The 3rd root of -64, or -64 radical 3, or the cube root of -64 is written as −64−−−−√3=−4.
The cube root of 8 is written as 8–√3=2.
The cube root of 10 is written as 10−−√3=2.154435.
The cube root of x is the same as x raised to the 1/3 power. Written as x−−√3=x13. The common definition of the cube root of a negative number is that
(-x)1/3 = -(x1/3).[1] For example:
The cube root of -27 is written as −27−−−−√3=−3.
The cube root of -8 is written as −8−−−√3=−2.
The cube root of -64 is written as −64−−−−√3=−4.
Cube roots (for integer results 1 through 10)
Cube root of 1 is 1
Cube root of 8 is 2
Cube root of 27 is 3
Cube root of 64 is 4
Cube root of 125 is 5
Cube root of 216 is 6
Cube root of 343 is 7
Cube root of 512 is 8
Cube root of 729 is 9
Cube root of 1000 is 10