If y^2+7ay+40=0 and y^2+2ay-60=0 have a common root, then the value of – McqOptions

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1.	If y^2+7ay+40=0 and y^2+2ay-60=0 have a common root, then the value of a is
A.	±4
B.	±2
C.	±5
D.	±6
Answer» C. ±5

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