Q369
If x + y = 1, then what is the value of x3 + 3xy + y3?
A.
-1
B.
1
AnswerC.
0
D.
2
Answer: Option B
Solution
Answer: Option B
Solution:
x + y = 1put y = 0
x = 1
x3 + 3xy + y3
= 13 + 0 + 0
= 1
Aptitude · Q369
Algebra
Competitive Exams · Aptitude · question 369
put y = 0
x = 1
x3 + 3xy + y3
= 13 + 0 + 0
= 1