X^3 - y^3 = 218 where x and y are positive integers. Find x+y
1 answer:
The value of x + y is 12
<h3>How to solve for x + y?</h3>
The equation is given as:
x^3 - y^3 = 218
Make x^3 the subject
x^3 = 218 + y^3
The next cubic expression greater than 218 is 343.
So, we assume
x^3 = 343
This gives
x = 7
Substitute x^3 = 343 in x^3 = 218 + y^3
343 = 218 + y^3
Evaluate the like terms
y^3 = 125
This gives
y = 5
So, we have:
x + y = 7 + 5
Evaluate
x + y = 12
Hence, the value of x + y is 12
Read more about equations at:
brainly.com/question/2972832
#SPJ1
You might be interested in
416.25
375*.11=41.25
41.25+375=416.25
Answer:
i think those are cord nits correct me if im wrong i might be
Step-by-step explanation:
This is really obvious but the answer is 4 feet.
Options for the question needed
Amount of points don't matter what is the question lets see if I can help
