How do you do this function (t - 4) (t + 4)

Question

Mathematics

Isis Webb

12 June, 05:17

How do you do this function (t - 4) (t + 4)

+5

Answers (2)

Know the Answer?

Highbeam · Answer 1

Answer: t^2-16

Explanation:

Use FOIL (First Inner Outter Last)

So First: t x t = t ^2

Inner: t x 4 = 4t

Outter: - 4 x t = - 4t

4 x 4 = 16

Combine:

= t^2 + 4t - 4t + 16 (-4t + 4t = 0)

= t^2-16

Ariana Bond · Answer 2

Ariana Bond 12 June, 08:49

0

t^2-4^2 = t^2-16

(a+b) (a-b)