perplexus.info :: Just Math : Quadratic and Cubic Expression Quickie

Quadratic and Cubic Expression Quickie (Posted on 2023-10-17)

Suppose x and y are two real numbers with x ≠ y, such that
y = 1+x+x², and:
x = 1+y+y².

Determine the value of x³+y³.

Submitted by K Sengupta

Rating: 5.0000 (1 votes)

Solution: (Hide)

CORRIGENDUM: The problem statement states that each of x any y is a real number, which is erroneous.
SOLUTION:
x^3+y^3= {10,10}
For an explanation, refer to the solution submitted by broll in this location.

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

Subject	Author	Date
Possible Solution	broll	2023-10-18 05:07:03
computer solution	Charlie	2023-10-17 17:50:22

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