Question

Find the value of K in the following quadratic equations



solve this equation fast!!!

(K + 1)x2 - 4 Kx + 9 = 0 have real & equal roots?









if u know then only answer it​

Answer 1

◉‿◉(◠‿◕).........

b2 - 4ac = 0

(-4k)2 - 4 (k+1) (9) = 0

16k - 36k +36 = 0

4 (4K2 - 9k + 9) = 0 (taking 4 common)

therefore, 4k² - 9k + 9 = 0

solving the equation,

(Factorizing) 4k2 - 12k - 3k + 9 = 0

4k (k-3) - 3 (k - 3) + O

(k-3)(4k-3) = 0

thus, k = 3 or 3/4

mark as brain....

Answer 2

I hope this answer would be right..........

The above written answer by GOODBADBOY is little wrong..