## anonymous one year ago How to evaluate quadratic functions? If the given is a(x)=3x+6 and c(x)=x^2-7x+8 Then how do I evaluate a(x)-c(x)?

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1. Nnesha

subtract $\huge\rm \color{Red}{a(x)} -\color{blue}{ c(x)}$ a(x) =3x+6 so replace a(x) with 3x+6 $\huge\rm \color{reD}{(3x+6)}-\color{blue}{(x^2-7x+8)}$

2. Nnesha

first distribute 2nd parentheses y negative one and then combine like terms

3. anonymous

do I completley solve the problem or do i leave it alone after that

4. Nnesha

then leave it alone u just have to subtract both functions that's it

5. Nnesha

first distribute 2nd parentheses y negative one and then combine like terms that's it

6. anonymous

$-x^2+10x-2$ right?

7. Nnesha

i just want to ask one question just one how did you get 10x ???

8. anonymous

7x and 3x?

9. anonymous

i combined them .

10. Nnesha

looks good right good job!

11. anonymous

thank you!c:

12. Nnesha

:=)