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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It all makes sense now! Thank you so much!

thatone
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Hey can you plz make some Practice videos for CPT/PERT placement tests.. i am really struggling with the math.. i don't want the others to go through same trouble as me... and i know ur videos will be very helpful... thanks

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

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

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

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

upsyndrome
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