a math question?

Question

alright so i have this qu

-2^2-#sign#-sign25

sign=

3 ______
- / 8
\/

for the last number where it says sign 25 is in that

so my qu is what does the 3 mean above the sign thing where 8 is?

Answer 1

That looks like the negative cube root of 8, which evaluates to -2. The 3 indicates that we want the cube root, not the square root or the fifth root or the seventeenth root.

Answer 2

That 3 is the 'order' of the root. In this case, they're asking for the cube root of 8 (which is 2 since 2^3 = 2*2*2 = 8)

Doug

Answer 3

the 3 means which number if you mutiply by itself 3 times, will give you 8? the answer is 2.
examples:

3 ______
/ 125
\/
= 5 since 5*5*5 = 125 , the number
inside the radical sign.
3 ______
/ 27
\/
= 3 since 3*3*3 = 27 ,

5 ______
/ 32
\/
= 2 since 2*2*2*2*2 = 32. In this
case the 5 means what number multiplied by itself 5 times would give 32.

Answer 4

i think it is the cubic root

Answer 5

what