If 2 is a root of the equation \( x^{2}+a x+12=0 \) and the quadratic equation \( x^{2}+a x+q=0 ... VIDEO
If 2 is a root of the equation \( x^{2}+a x+12=0 \) and the quadratic equation \( x^{2}+a x+q=0 \) has equal roots, then \( q= \)
(a) 12
(b) 8
(c) 20
(d) 16
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