Question

Qual a raíz da função f(x)=x2^-x-2

Answer 1

a=1

b=-1

c=-2

b²-4*a*c

(-1)²-4*1*(-2)

1+4*2

1+8

x1=-b+$\sqrt{9}$/2*1

-(-1)*3/2

1+3/2=4/2=2

x2=-b-$\sqrt{9}$/2*1

-(-1)-3/2

-4/2=-2