Question

If x2 + y2 + 2x + 1 = 0, therefore the value of x31 + y35 is

A -1 Correct Answer Incorrect Answer
C 1 Correct Answer Incorrect Answer
D 2 Correct Answer Incorrect Answer

Solution

x2 + y2 + 2x + 1 = 0 x2 + 2x + 1 + y2 = 0 {∵ (x + 1) 2 = x2 + 2x + 1} (x + 1)2 + y2 = 0 there4; (x + 1) 2 = 0, y2 = 0 x+1 = 0 y = 0 x = -1 y = 0 x31 + y35 minus;131 + 035 = -1

×
×