Question

X2-X-6=0 formula de baskara​

Answer 1

Olá, Boa Noite!

x² - x - 6 = 0

A= 1

B= - 1

C= - 6

∆= b² - 4ac

∆= ( - 1)² - 4 • 1 • (- 6)

∆= 1 + 24

∆= 25

x= - b ± √∆ / 2a

x= - ( - 1) ± √25 / 2 • 1

x'= 1 + 5/2 = 6/2 = 3

x''= 1 - 5/2 = - 4/2 = - 2

S= ( 3 , - 2)