perplexus.info :: Just Math : Cubic Expression and Perfect Cube

Cubic Expression and Perfect Cube (Posted on 2015-10-04)

Each of x and y is a positive integer.
Can each of x^3+y and y^3+x be a perfect cube?.
Give reasons for your answer.

Submitted by K Sengupta

Rating: 3.6667 (3 votes)

Solution: (Hide)

No, they cannot both be a perfect cube.
For an explanation, refer to the solution submitted by Steve Herman in this location.

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
re: q.e.d. (spoiler)......bravo	Ady TZIDON	2015-10-05 06:45:17
q.e.d. (spoiler)	Steve Herman	2015-10-04 20:22:25

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