Question

f(x)=x3-3x2-7x+10 at x=-1 and x=-2​

Answer 1

Answer:

x=2

x=

−2

−1−

−19

=

2

1+i

19

=0.5000−2.1794i

x=

−2

−1+

−19

=

2

1−i

19

=0.5000+2.1794i

Answer 2

Answer:

3x-3x2-7x+10

3(-1)-3×2-7(-2)+10

-3-6+14+10

-9+24

15