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Factor the expression $\left(x-4\right)^2-4$

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Pre-Calculus - Factor and use fundamental identities to simplify, ((cosx)^2 -4)/(cosx - 2)

https://www.youtube.com/watch?v=D0UPURfyahI

Pre-Calculus - How to simplify a trigonometric expression by squaring a binomial (sin(x)+cos(x))^2

https://www.youtube.com/watch?v=e5IczuZxvVI

Determine the Zeros for a Polynomial by Factoring

https://www.youtube.com/watch?v=-QyGm4A4020

Tutorial - Simplify Expressions Dividing simplify denominator, 7/(4 x 3 - 8)

https://www.youtube.com/watch?v=Mt62UqVlxSc

Tutorial - Simplify Expressions Dividing simplify numerator, (3 x 2 + 4)/2

https://www.youtube.com/watch?v=5JklSCAtMrk

Example 5: Factoring a fourth degree polynomial using the "perfect square” form | Khan Academy

https://www.youtube.com/watch?v=o-ZbdYVGehI

Derivative

$\frac{d}{dx}\left(\left(x-4\right)^2-4\right)=2\left(x-4\right)$ See full solution

Integral

$\int\left(\left(x-4\right)^2-4\right)dx=\frac{\left(x-4\right)^{3}}{3}-4x+C_0$ See full solution

Main Topic: Polynomial Factorization

They are a group of techniques that help us rewrite polynomial expressions as a product of factors.

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