If the difference between the corresponding roots of x^2 + ax +b=0 and x^2 +bx +a =0 is same and a is not equal to b, then
A)a+b+4=0
B)a+b-4=0
C)a-b-4=0
D)a-b+4=0
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i think the ans will be a+b+1=0
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