Question

quais são as raizes da equação f(x)= 3x² +2x-1?

Answer 1

$f(x)=3x^2+2x-1 \\ a=3 \\ b=2 \\ c=-1 \\ delta= b^2-4.a.c \\ delta=2^2-4.3.(-1) \\ delta=4+12 \\ delta=16 \\ x=-b+- \sqrt delta/2 \\ x=-2+-4/2 \\ x'=-2-4/2=-3 \\ x"=-2+4/2=1$

Answer 2

1/3 e -1
x=-b+-/b²-4ac
formula de baschara