## eli123 2 years ago HELPPPP

1. eli123

2. satellite73

the first one just means subtract use parentheses $5x+4-(2x+5)$

3. satellite73

you get a polynomial, in fact you get a line the domain of any polynomial is all real numbers

4. satellite73

the second one just means divide $\frac{5x+4}{2x+5}$

5. satellite73

to find the domain, set $$2x+5=0$$ and solve for $$x$$ then say "all real numbers except your answer"

6. eli123

IS THE FIRST ONE 3X-1?

7. eli123

1/3

8. eli123

and the second one is -4/5

9. satellite73

yes, the first one is $$3x-1$$

10. eli123

and domain is x not equal to -5/2

11. satellite73

that is for the domain of $$\frac{f(x)}{g(x)}$$ yes domain for $$a$$ is all real numbers

12. eli123

yes

13. satellite73

i am not sure what you mean by "second one is -4/5"

14. eli123

for b when i divide i get that answer

15. satellite73

looks like $$b$$ has two parts

16. satellite73

first answer is $$\frac{5x+4}{2x+5}$$

17. satellite73

that is the entire answer you cannot simplify this in any way

18. eli123

so for both answers i leave them as functions? not fractions

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