Question

Fórmula de Bhaskara a)x²-4x-5=0 b)2x²-3x-5=0

Answer 1

Resposta:

a)x²-4x-5=0

Delta=16+20

Delta=36

×=4+6/2

×=10/2

×=5

×4-6/2

×=-2/2

×=-1

(-1,5)

b)2x²-3x-5=0

Delta=9+40

Delta=49

×=3+7/4

×=10/4

×=5/2ou 2,5

×=3-7/4

×=-4/4

×=-1

(-1,5/2)

Explicação passo-a-passo: