Question

9x²-KX+16=0 K ka man gyat ​

Answer 1

Answer:

k= 3

Explanation:

Quadratic equations have equal roots when D =  - 4*a*c = 0

here a= 9, b=8k and c = 16

0 =  - 4*9*16

⇒ 0 = 64 - 576

⇒ 0 = [tex]k^{2} = 9

⇒ k = 3

Therefore for k = 3 the quadratic equation has equal roots.

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