torrezflor12445678
torrezflor12445678 torrezflor12445678
  • 15-07-2020
  • Mathematics
contestada

I need help plz someone help me solved this problem I need help ASAP! I will mark you as brainiest!

I need help plz someone help me solved this problem I need help ASAP I will mark you as brainiest class=

Respuesta :

tramserran
tramserran tramserran
  • 15-07-2020

Answer: k = 12

Step-by-step explanation:

x² + kx + 36 = 0

In order for x to have exactly one solution, it must be a perfect square.

(x + √36)² = 0

(x + 6)² = 0

(x + 6)(x + 6) = 0

x² + 6x + 6x + 36 = 0

x² + 12x + 36 = 0

 k = 12

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