Wait it says ur in high school so u can't be over 30. that isn't possible. So what's the problem here? not good at math.
-3(-4y+3) +7y
Expand
12y-9+7y
Add like terms
19y-9
The answer is false I hope this helps
Answer:
-25/3
Step-by-step explanation:
Let's take a look at a perfect square trinomial.

We can distribute this expression to get

.
An important relation to recognize here is that the constant is the square of half of the x value.
Now, if we wanted to add a number to

to make a perfect square trinomial, we could have the value of x and then square it.
Half of 16 is 8, and 8 squared is