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

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Answer 1 · 2017-04-05T03:02:33

$4(25x^2+1)$

Use FOIL to expand,

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

Collect like terms,

$100x^2+4$

Simplify and the answer is,

$4(25x^2+1)$

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