Answer:
<u>Question 5: </u>The missing term her is r²
<u>Question 6: </u>The missing term here is 3.
Step-by-step explanation:
<u>Question 5:</u>
Let's write the equation and then solve it for the missing term. We will call this term x.

First, we simplify the letf term adding the similar terms.

Now, we substract<u> </u>4r⁴ and 7r in both sides.

Therefore, the <u>missing term her is r²</u>
<u>Question 6:</u>
Here, we will call the missing term y. Now, let's solve it for y.

Let's first distribute the minus sign into the parentehsis.

Now simplify the left side by adding similar terms.

Now, let's add 14x and 5x² on both sides, then subtract 7 on both sides.
Therefore, the <u>missing term here is 3</u>.
I hope it helps you!