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Please answer this questions correctly. Right answer will be marked Brainliest. ​

Answer»

(i) A QUADRATIC equation has DEGREE = 2 so (a+2) can’t be zero, so a can’t be -2
Ans: C

(ii) D = 49 - 72 = negative. So both roots are imaginary
Ans: B

(iii) If roots are equal and opposite, then sum of roots = 0. So (-abc/a) =0, so bc = 0
Ans: B

(iv) If the two roots are reciprocal, then the product of the roots = 1. So k/5 = 1. So k=5
Ans: B

Hope it helps

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