Perfect square factorization intro | Mathematics II | High School Math | Khan Academy

When an expression has the general form a²+2ab+b², then we can factor it as (a+b)². For example, x²+10x+25 can be factored as (x+5)². This method is based on the pattern (a+b)²=a²+2ab+b², which can be verified by expanding the parentheses in (a+b)(a+b).

High School Math on Khan Academy: Did you realize that the word "algebra" comes from Arabic (just like "algorithm" and "al jazeera" and "Aladdin")? And what is so great about algebra anyway? This tutorial doesn't explore algebra so much as it introduces the history and ideas that underpin it.

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[Waleed-jikn]

Use this to expand guys, its a lot easier: a²+2ab+b²..if the equation is positive +.. If its negative - use this... a²+2ab-b²

[adamcronin]

You have carried me through leaving cert higher maths thank you for this

[chilli]

sometimes i feel halla slow bc i go brain dead when these large words come out

[omarm]

Can you please do mechanical engineering in thinking about it as a future career ps thanks you help me a lot in school work :)

[sahiljena]

I dont understand how to graph a parabola of the form y=ax squared. I was doing it in one of our school study sites but the explanarion isn't helpful.

[nishorsmth]

WHY IS IS (x+3)(x+3)?? And why does it equal (x+3)2