Question

What is the factored version of:

b2−16

Answer 1

Whats something in common these two numbers have

Answer 2

\[b^2-16\]

Answer 3

They both add up to 32?

Answer 4

no, they cant add up to 32.
they are both "squares"
You can take the square root of both of these numbers.

Answer 5

the key to factoring is recognizing common patterns.
foil this out:
(b+4)(b-4)