(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Going through my review material, and I need some help on this simple procedure.

example 1: (2x + 1)^2

example 2: 2(x^2 -1)

I forgot how to do this. Can someone please help me out?

2. Relevant equations

3. The attempt at a solution

Example 1: 2x squared is 4x?.... I dunno. Im stuck. I need a good review on how to do this simple procedure. Any website link to a review/refreasher would be good.

Thanks guys

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# Homework Help: Really basic expanding question: Forgot how!

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