Question

math problem

Answer 1

First solve for f(-1)
in -x-4, when x is -1, what is it

Answer 2

-5

Answer 3

Yep, so we then do
g(-5)
-x^2 -3x -1, when x is -5

Answer 4

-41

Answer 5

Actually, it would be -25 + 15-1

Answer 6

hats next

Answer 7

What is -25+15-1

Answer 8

-11

Answer 9

So there's your answer

Answer 10

@AZ

Answer 11

\(\color{#0cbb34}{\text{Originally Posted by}}\) @iuytyuioiuytyuiop
-5
\(\color{#0cbb34}{\text{End of Quote}}\)

-(-1) - 4

= 1 - 4

= -3

Answer 12

plug in x = -3 into g(x)

Answer 13

the mistake you made initially was that when you plugged in x = -1 into f(x)

you didn't realize there was already a negative sign in front of the x

so it was -x

and x is -1

so -x is going to be -(-1) which is +1

Answer 14

-9-9-1

Answer 15

be careful

you got the first -9 correct

but after that we have -3x
and plugging in -3 gets us

-3 (-3) = ?

Answer 16

9

Answer 17

yes so we go from

-x^2 - 3x -1

\( = -(\color{red}{-3})^2 - 3(\color{red}{-3}) - 1\)

\( = -9- (-9) - 1\)

\( = -9 + 9 - 1\)

does that make sense?

Answer 18

yep

Answer 19

-1

Answer 20

you got it!

Answer 21

\(\color{#0cbb34}{\text{Originally Posted by}}\) @iuytyuioiuytyuiop
-5
\(\color{#0cbb34}{\text{End of Quote}}\)
not is -5 f(-1)

ATTENTION PLEASE !!!!

f(x)= -x -4

f(-1) = -(-1) -4 = +1 -4 = -3

f(-1) = -3

Answer 22

ohh ok now i see that @AZ corrected it above ...