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  1. If x2 + y2 + 2x + 1 = 0, then the value of x31 + y35 is
    1. –1
    2. 0
    3. 1
    4. 2
Correct Option: A

x2 + y2 + 2x + 1 = 0
⇒  x2 + 2x + 1 + y2 = 0
⇒  (x + 1)2 + y2 = 0
⇒  x + 1 = 0 ⇒ x = –1 and y = 0
∴  x31 + y35 = –1


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