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3 years ago

8

PLZZZ HELP ASAP completly clueless

1 answer:

Ede4ka [16]3 years ago

7 0

Answer:

c

Step-by-step explanation:

quadratic formula: -b±√b²-4ac/ 2a

a= -10

b= 12

c= -9

-12±√144- 4(-10)(-9)/ 2(-10)

-12±√144- 360/ -20

-12±√-216/-20

6±3i√6/ 10

simplify: 3/5± 3i√6/10

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