Question

y²-7y+12=0 ( preciso do Delta )

Answer 1

y² - 7y + 12 = 0


delta = b² - 4.a.c

a = 1
b = -7
c = 12


delta = (-7)² - 4.1.12
delta = 49 - 48
delta = 1


x = -b ± √delta/2.a


x = -(-7) ± √1/2.1

x = 7 ± 1/2

x = 7 + 1/2 = 8/2 = 4

x = 7 - 1/2 = 6/2 = 3


s={ 4, 3 }



☆Espero ter ajudado! tmj