# How do you find the product (10x-2)(10x+2)?

Apr 5, 2017

$4 \left(25 {x}^{2} + 1\right)$

#### Explanation:

Use FOIL to expand,

$100 {x}^{2} + 20 x - 20 x + 4$

Collect like terms,

$100 {x}^{2} + 4$

Simplify and the answer is,

$4 \left(25 {x}^{2} + 1\right)$