The answer would be 68x-72
-8 I think because it has a pattern
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
Answer:
54 degrees
Step-by-step explanation:
The problem statement tells you the sum of measures:
y +(2y) +(2y+4) +(2y+2) +(3y-6) = 540
y(1 +2 +2 +2 +3) +(4 +2 -6) = 540 . . . collect terms
10y = 540 . . . . simplify
y = 54 . . . . . degrees