Question

X elevado ao quadrado + x - 12​

Answer 1

x²+x-12

b-4.a.c

1-4.1.(-12)

1-4.(-12)

1+48

49

-b±√∆/2.a

-1±7/2

6/2=3

-8/2=-4

x'= 3 e x"= -4