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cauavedo
@cauavedo
August 2022
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gente me ajude resolvam essa equação com conta x² - 3x -4 = 0
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Tábata121
Verified answer
X² -3x -4
Δ= b² -4ac
Δ= (-3)² -4.1.(-4)
Δ= 9 + 16
Δ= 25
x= -b +/- √Δ / 2a
x= -(-3) +/- √25 / 2.1
x'= 3 + 5 / 2
x'= 8 / 2
x'= 4
x''= 3 -5 / 2
x''= -2 / 2
x''= -1
Bons estudos!
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cauavedo
parabens resposta otima mó tesao]
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Verified answer
X² -3x -4Δ= b² -4ac
Δ= (-3)² -4.1.(-4)
Δ= 9 + 16
Δ= 25
x= -b +/- √Δ / 2a
x= -(-3) +/- √25 / 2.1
x'= 3 + 5 / 2
x'= 8 / 2
x'= 4
x''= 3 -5 / 2
x''= -2 / 2
x''= -1
Bons estudos!