Hello and Good Morning/Afternoon:
<u>Let's take this problem step by step</u>:
<u>Let's consider what the problem wants</u>:
⇒ the <em>value</em> of (f-g)(y)
<u>Let's consider what the problem gives us</u>:
⇒ the <em>value of f(y) and g(y)</em>
<em />
<u>Let's consider the relationship between f(y), g(y) and (f-g)(y)</u>
⇒ 
<u>Let's solve for (f - g)(y)</u>

<u>Answer</u>: 8y²- y + 3
Hope that helps!
#LearnwithBrainly