Answer:
expression
Step-by-step explanation:
expressions DON'T have equal signs but equations do.
<span> 3a^3+8a-6
+4a^2-9a+11
=3a^3+4a^2-a+5
</span>
Answer:
3
Step-by-step explanation:
Each of the lines lengths multiply by 3.
Answer:
f(9) =21
Step-by-step explanation:
I will assume you want to find f(9) when x=9
Let x=9
f(9) = 2(9) +3
= 18+3
=21
f(9) =21