Question

x elevado a 2-8×+12=0​

Answer 1

x² - 8x + 12 = 0

a = 1

b = -8

c = 12

∆ = b² - 4.a.c

∆ = (-8)² - 4.1.12

∆ = 64 - 48

∆ = 16

x = -b ± √∆ / 2.a

x = 8 ± √16 / 2.1

x = 8 ± 4 / 2

x¹ = 8 + 4 / 2

x¹ = 12 / 2

x¹ = 6

x² = 8 - 4 / 2

x² = 4 / 2

x² = 2