If \( abcd \) and \( k0 \), then the quadratic
P equation \( (x-a)(... VIDEO
If \( abcd \) and \( k0 \), then the quadratic
P equation \( (x-a)(x-c)+k(x-d)=0 \) has
W
(1) All roots real and distinct
(2) All roots real but not necessarily distinct
(3) All roots real and negative
(4) May be imaginary
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