Question

Resolver questao de 2° grau. 2ײ - 8× + 8 = 0

Answer 1

2x² - 8x + 8 = 0

A= 2

B= - 8

C= 8

∆= b² - 4ac

∆= ( - 8)² - 4 • 2 • 8

∆= 64 - 64

∆= 0

x= - b ± √∆/2a

x= - ( - 8) ± √0/2 • 2

x= 8 ± 0/4

x' e x''= 8 ± 0/4 = 8/4 = 2

S= ( 2)

Answer 2

Delta=8.8-4.2.8
Delta=0
Sendo assim 8 +/- 0 = 4/-4
2