Question

Find value of K for which equation 9x

2 + 8 + 8 = 0 has equal roots.​

Answer 1

Answer:

for equal roots

discriminant must be equal to zero

D = b²-4ac must be zero

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

so (8k)²-4×9×8= 0

64k²= 288

k² = 9/2

k = 3/√2

k = 2.1

Step-by-step explanation:

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