Question 98028: Okay, I guess I did not get it. the little 3 outside the square root of 8y^3
please explain.
Answer by scott8148(6628)   (Show Source):
You can put this solution on YOUR website! the "square" root symbol is just a root symbol where the 2 is the "default" value ... if there is no number, it is a square root
as you have discovered, any positive integer may be used
in this case, a 3 indicates a "cube" root ... something multiplied by itself 3 times to get the value inside the symbol
since 2*2*2=8 and y*y*y=y^3, the cube root of 8y^3 is 2y
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