Which of the following is not a perfect cube? 512 125 729 225

225 is not a perfect cube

The principal, real, root of:
³√225=6.082202
All roots:
6.082202

−3.041101+5.26734144i
−3.041101−5.26734144i
225 is not a perfect cube

Atranslation 6 units to the right and 4 down

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.