Question

How do you multiply `(c - 6) ( c + 6)`?

Answer 1

`c^2-36`

Explanation:

Remember: `(a-b)(a+b)=a^2+ab-ab-b^2=a^2-b^2`

Here, `a` is `c` and `b` is `6`.

`c^2-6^2`

`c^2-36`