(x3+4x²+5x+2) = (1+1)
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-2 - i
-2 + i
Step-by-step explanation:
- (x³+4x²+5x+2) = (1+1)
- x³+4x²+5x = 2-2
- x(x² + 4x + 5) = 0
- x(x²+4x+ 4 +1 )= 0
- x((x+2)²+1)=0
- 1. x= 0
- 2. (x+2)² +1= 0
- (x+2)²= -1
- x+2 = ± √-1 ⇒ x= -2 - i and x= -2 + i
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