If x2 + ax + b = 0 and x2 + bx + a = 0 have exactly 1 common root then – McqOptions

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1.	If x² + ax + b = 0 and x² + bx + a = 0 have exactly 1 common root then what is the value of (a + b)?
A.	1
B.	0
C.	-1
D.	3
Answer» D. 3

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