16.8k views
1 vote
Which number in the monomial 125x18y3z25 needs to be changed to make it a perfect cube

User Shemika
by
5.8k points

2 Answers

6 votes
take each prime factorization,
5^3 * 3^2 * 2 * 3 * 5^2 =
5^5 * 3^3 * 2
in other words, we can get rid of the 2 and get another 5 to make
(5^2 * 3)^3 = 5^6 * 3^3
to do this, make the 18 from 3^2 * 2 to 3^2 * 5 which makes it so the 18 becomes 45
the monomial should be 125x45y3z25
User Rullof
by
6.4k points
4 votes

Answer:

im not sure but i think it is 25

Explanation:

User Meliha
by
6.1k points
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