Introduction to grouping | Algebra I | Khan Academy

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Factor t^2+8t+15 as (t+3)(t+5), first using the "sum-product" method, then using the grouping method.
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Algebra I on Khan Academy: Algebra is the language through which we describe patterns. Think of it as a shorthand, of sorts. As opposed to having to do something over and over again, algebra gives you a simple way to express that repetitive process. It's also seen as a "gatekeeper" subject. Once you achieve an understanding of algebra, the higher-level math subjects become accessible to you. Without it, it's impossible to move forward. It's used by people with lots of different jobs, like carpentry, engineering, and fashion design. In these tutorials, we'll cover a lot of ground. Some of the topics include linear equations, linear inequalities, linear functions, systems of equations, factoring expressions, quadratic expressions, exponents, functions, and ratios.
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[@thatone3598]

It all makes sense now! Thank you so much!

[@perry1283]

so helpful thanx

[@Teslabomb89]

Thank you so much, just thank you.

[@ImpeccableGoon]

Thanks for your help! :)

[@SonOfBangali]

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[@mohammadelchayyeb2018]

very helpful

[@jacobcastillo2847]

It's easy when it's explained, thanks!!

[@paulceltics]

thanks

[@hexlo2627]

thanks man

[@amad132]

how did he got a and b variable in this question help plz

[@JAMiSHNeSS868]

I DONT UNDERSTAND THE SIGNIFICANCE OF THE LAST STEP !!!! ::"(

[@sharrae4187]

JAMiSHNeSS868 I don't get it either😥😥

[@21350ctw]

Me either!!! D:

[@sharrae4187]

I don't get it😭😭

[@thanhxy1284]

i don't understand this shit

[@temerity8114]

+Tommy Ho lmao

[@upsyndrome5466]

I know Ms.Edgleys class is watching this...