Question

resolva a equação do segundo grau x²+x+12=0

Answer 1

a=1
b=1
c=12

b^-4ac
1^-4.1.12
1-4.1.12
(-3).12
36

-1+-V36/2.1
×'=-1+6/2
×'=-5/2
×'=-2,5

×"=-1-6/2
×"=7/2
×"=3,5

×'=-2, 5
×"=3, 5