Question

answer pls I'll mark it the best...​

Answer 1

Step-by-step explanation:

f(-1) = 2 + -1/2 + (-1)² - (-1)³/3

= 2 - 1/2 + 1 + 1/3

= 10/3 -1/2 = 17/6

Answer 2

Answer:

Solution set(S)={$\frac{-7}{2}$,-1,2}

Step-by-step explanation:

f(x)=2+$\frac{x}{2\\}$+$x^{2}$-$x^{3}/3$

first, we put on common denominator; which is 6.

=6x2+6$\frac{x^}{2}$+6$x^{2}$-6$\frac{x^{3} }{3}$

        6

2+3$x$+6$x^{2}$-$2x^{3}$=0

-$2x^{3}$+$6x^{2}$+$3x$=-2

$2x^{3}$+$6x^{2}$+$3x$=2

$x$(2$x^{2}$+$6x$+3)=2

x=2,  2$x^{2}$+$6x$+3=2

2$x^{2}$$6x$+3=2

2$x^{2}$$6x$=2-3

$x$($2x$+6)=-1

x=-1,  +$2x$+6=-1

2x=-1-6

2x=-7,    x=$\frac{-7}{2}$

$S={-\frac{7}{2},-1,2}$}