Question

Can some one help me out with an example Explain the following in your own words: (a + b)2 ≠ a2 + b2. Give a numerical example to illustrate this

Answer 1

Do those 2s mean that the numbers are squared? If so, then try multiplying out
\[(a+b)^2\]You get:
\[(a+b)(a+b)\]Distribute those brackets, what do you get?