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If 2 is a root of the equation x^2+a x...

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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RD SHARMA ENGLISH-QUADRATIC EQUATIONS-All Questions
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