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:
3
Step-by-step explanation:
21x + 6 = 3x + 60 subtract 3x from both sides
(21x-3x) + 6 = 60
18x + 6 = 60 subtract 6 from both sides
18x= 60-6
18x= 54 divide by 18
x =3
Answer:
add 23 plus 67
Step-by-step explanation:
hieo thanks again
Answer: 120
Step-by-step explanation: This answer is 120 because you multiply the three hours by the $40 you earn an hour and you get your product.
Hope this helps
Answer:
I think the answers are A and E.
Step-by-step explanation: