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Answer:
D = 76
Step-by-step explanation:
— Discriminant
[tex] \boxed{ \rm D = {b}^{2} - 4ac}[/tex]
┈
[tex] \rm D = ( { - 2)}^{2} - 4(6)( - 3)[/tex]
[tex] \rm D = 4 - 24( - 3)[/tex]
[tex] \rm D = 4 + 72[/tex]
[tex] \rm D = \bold{76}[/tex]