Question

5. If the equation 9x + 6A x+4-0 has equal roots then A=.​

Answer 1

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Answer 2

Answer:

Hence, A is 2

Step-by-step explanation:

9x + 6A x+4 = 0

Here, a = 9,b= 6A and c= 4

For equal roots the discriminant = 0

b²-4ac = 0

(6A)²-4(9)(4) = 0

(6A)² = 4(9)(4)

(6A)² = 144

6A = √144 = 12

A = 12/6 = 2