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Rewrite rational expressions Videos 5 videos

Multiplying Rational Expressions
2529 Views

Multiplying rational expressions is as easy as adding the exponents and simplifying. Ta da!

Operations with Rational Expressions
8687 Views

It's impressive that these expressions are able to stay so rational even when they're having operations performed on them.

SAT Math 4.3 Algebra and Functions
218 Views

SAT Math 4.3 Algebra and Functions

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Factoring Polynomials 3383 Views


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Description:

Factoring polynomials allows us to group things—and everything's always better in groups. Well... almost everything.

Language:
English Language

Transcript

00:03

Factoring polynomials by grouping a la shmoop!

00:07

Grunkle.. goblinvilles newest architect was having trouble constructing a hovel his [Goblin architecht thinking of a design]

00:12

hovel looks like this if he doesn't finish it by sundown he will look like

00:17

this and you help grunkle simplify his blueprints.. the area of the hovel floor [Tomatoes hit grunkle in the face]

00:24

should be x squared plus 3 X plus 2 X plus 6 all those polynomials are making

00:30

Grunkle rather blue which is unfortunate since Grunkle is usually a lovely [Grunkle with dirt on his face crying]

00:33

emerald green good thing we can factor this polynomial by grouping.. the first

00:39

two terms have a common factor of X and the last two terms have a common factor [Two terms with common factor X and last two terms common factor of 2]

00:43

of two we can rewrite the polynomial as x times X plus 3 plus 2 times X plus 3. See

00:55

another factor we can pull out into both terms have X plus 3 as a factor we can [People browsing through binoculars over a lake]

01:01

pull out an x plus 3 from each, this gives us X plus 2 times X plus 3

01:07

happy factorization Grunkle all you have to do now is look at your blueprint to [Grunkle stood beside a rainbow with his hovel blueprint]

01:12

see what X is and x equals the length of a ferocious jungle Jabberwocky sorry [Jabberwocky chases Grunkle away]

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