Alternativa correta letra C
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f ( x ) = 2x² + 3x + 4
f ( x ) = y
y = 2x² + 3x + 4
2x² + 3x + 4 = 0 ✓
a = 2
b = 3
c = 4
∆ = b² -4ac => 3² -4 • 2 • 4 => 9 - 4 • 2 • 4
=> 9 - 32 => ∆ = -23 ∆ < 0 logo X ∉ ℝ
✨ [tex]\Large\mathscr{\blue{Per:~Dan}}[/tex] ✨
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Alternativa correta letra C
________________________________
f ( x ) = 2x² + 3x + 4
f ( x ) = y
y = 2x² + 3x + 4
2x² + 3x + 4 = 0 ✓
a = 2
b = 3
c = 4
∆ = b² -4ac => 3² -4 • 2 • 4 => 9 - 4 • 2 • 4
=> 9 - 32 => ∆ = -23 ∆ < 0 logo X ∉ ℝ
✨ [tex]\Large\mathscr{\blue{Per:~Dan}}[/tex] ✨