Question

ajuda ai
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Answer 1

Resposta:

- 3x² + x + 2

a = - 3

b = 1

c = 2

∆ = b² - 4.a.c

∆ = 1² - 4.(-3).2

∆ = 1 + 12.2

∆ = 1 + 24

∆ = 25

Letra "D" 25.