Question

a) x² – 5x + 6 = 0
b) x² - 10x + 24 = 0
c) x² - 4x - 12 = 0​

Answer 1

Resposta:

A) x² – 5x + 6 = 0

Delta=25-24

Delta=1

×=5+1/2

×=6/2

×=3

×=5-1/2

×=4/2

×=2

(2,3)

b) x² - 10x + 24 = 0

Delta=100-96

Delta=4

×=10+2/2

×=12/2

×=6

×=10-2/2

×=8/2

×=4

(4,6)

c) x² - 4x - 12 = 0​

Delta=16+48

Delta=64

×=4+8/2

×=12/2

×=6

×=4-8/2

×=-4/2

×=-2

(-2,6)

Explicação passo-a-passo: