133k views
3 votes
Is the equation below a sum of cubes
125x3 +169

1 Answer

5 votes

Answer:

NO

Explanation:


\text{Because}\\\\125x^3=5^3x^3=(5x)^3\qquad\bold{it's\ a\ cube}\\\\169=13^2\qquad\bold{it's \ a \ square}\\\\125x^3+169=(5x)^3+13^2


13-\text{it's a prime number}

User Aryn
by
7.0k points