Answer:
Let's factor a2−8a+16
a2−8a+16
The middle number is -8 and the last number is 16.
Factoring means we want something like
(a+_)(a+_)
Which numbers go in the blanks?
We need two numbers that...
- Multiply together to get 16
- Can you think of the two numbers?
Try -4 and -4:
-4+-4 = -8
-4*-4 = 16
Fill in the blanks in
(a+_)(a+_)
with -4 and -4 to get...
(a-4)(a-4)
Answer:
(a−4)(a−4)
