Question

find f(1) if f(x)=x^3 + 2x^2 -x -1

Answer 1

Change each x to the right hand side of the = sign, to 1 and evaluate the result.

Answer 2

3?

Answer 3

\(\bf f({\color{brown}{ x}})={\color{brown}{ x}}^3 + 2{\color{brown}{ x}}^2 -{\color{brown}{ x}}-1\qquad {\color{brown}{ x}}=1\implies f({\color{brown}{ 1}})=?\)

Answer 4

@Dat7105
1.

1 cubed is 1
2 times 1 squared is 2 times 1 or 2.
-1 is -1
-1 is given
1+2-1-1 = 1

Answer 5

Thank you

Answer 6

Your welcome and thank you for the medal.

Answer 7

Thank you for the medal, @jdoe0001