Question

∆Equação do 2° Grau - Fórmula de Bhaskara∆

•Exercícios•

a) 3² + 4x + 1 = 0

b) 2x² + 7x + 3 = 0

c) 6x² + 5x - 1 = 0

d) x² - 9x + 19 = 0

e) x² - 8x + 16 = 0​

Answer 1

■ Oie tudo bom☺?!

→ a) a= 3 b= 4 c= 1

→ Δ = 16-12

→ Δ = 4

→ x'= -4+2/6=

→ x'= -2/6

→ x'= -1/3

→ x''= -4-2=6

→ x''= -6/6

→ x''= -1

--------------------------------------------------------------------------------------------------------------

→ b) a= 2 b= 7 c= 3

→ Δ= 49-24

→ Δ= 25

→ x'= -7+5/4

→ x'= -2/4

→ x'= -0,5

→ x''= -7-5/4

→ x''= -12/4

→ x''= -3

--------------------------------------------------------------------------------------------------------------

→ c) a= 6 b= 5 c= -1

→ Δ= 25+24

→ Δ= 49

→ x'= -5+7/12

→ x'= 2/12

→ x'= 1/6

→ x''= -5-7/12

→ x''= -12/12

→ x''= -1

-----------------------------------------------------------------------------------------------------------

→ d) a= 1 b= -9 c= 19

→ Δ= 81-76

→ Δ= 5

→ x'= 9+√5 / 2

→ x''= 9-√5 /2

-----------------------------------------------------------------------------------------------------------

→ e) a= 1 b= -8 c= 16

→ Δ= 64-64

→ Δ= 0

→ x' e x'' = 8/2

→ x' e x''= 4

Espero ter ajudado bastante! ⇒_⇒ Melhor resposta !

Att∴ Trasherx ™♛★♂ツ