Question

6x ao quadrado-x-2=0 equação de 2 grau

Answer 1

6x² - x - 2 = 0

delta= b² - 4.a.c

a= 6, b= -1, c= -2


delta= (-1)² - 4.6.(-2)
delta= 1 + 48
delta= 49

x = -b ± √delta/2.a

x = -(-1) ± √49/2.6

x = 1 ± 7/12

x = 1 + 7/12 = 8/12 = 2/3

x = 1 - 7/12 = -6/12 = -2/4

s={ 2/3, -2/4 }

Answer 2

6x^2-x-2

delta=b^2-4.a.c
delta=1+48
delta=49

x=-b+- rais de delta/2.a
x'=1+7/2.6
x'=8/12=2/3

x''=1-7
x''=-6/12=-1/2