Math, asked by tarangchamp25, 4 months ago

If roots of equation 4.x² + Kx +9 = () are equal then value of K is -

Answers

Answered by brittany11

1

Answer:

k= 12 or k= -12

Step-by-step explanation:

If roots are equal, that means

b²-4ac=0

k²-(4×4×9)=0

k²= 144

k²=±12

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