SOLUTION: Can someone direct me and help correct my work if i am doing this ok or where did i go wrong. expand each notation and find its value: 1) 5^3 my work and answer 5*5*5 =125

SOLUTION: Can someone direct me and help correct my work if i am doing this ok or where did i go wrong. expand each notation and find its value: 1) 5^3 my work and answer 555 =125

Question 895855: Can someone direct me and help correct my work if i am doing this ok or where did i go wrong.
expand each notation and find its value:
1) 5^3
my work and answer 5*5*5 =125
2)20^2
my work and answer 20*20 = 400
Evaluate the following square roots:

3 )square root (16)
my answer 4
4) square root (81)
my answer 9

Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
#1 and #2 are correct
Square roots have plus and minus
3) sqrt(16)=+4 and -4 written +-4
4) sqrt(81)=+9 and -9 written +-9
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