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Mathematics 24 Online
OpenStudy (anonymous):

(x - 6)(x + 6)

OpenStudy (anonymous):

\[(a+b)(a-b)=a^2-b^2\]

OpenStudy (anonymous):

Now, tell me what you think.

OpenStudy (anonymous):

(x-6)(x+6) x times x = x^2 -6 times 6 = -36

OpenStudy (anonymous):

Special form: (a+b)(a-b)=a^2-b^2

OpenStudy (anonymous):

just multiply a by the x and 6 than mulitply the 6 by the x and 6

OpenStudy (anonymous):

than all you have to do is simplify it

OpenStudy (anonymous):

Obviously not typing fast enough to keep up here.....LOL

OpenStudy (anonymous):

It can be demonstrated from the form\[(a+b)(a-b)=a^2+\underbrace{[ab-ab]}_0-b^2\]

OpenStudy (anonymous):

so x^2+6x-6x-36 someone correct me if I am wrong

OpenStudy (anonymous):

you also could just distribute so x(x+6)-6(x+6)

OpenStudy (anonymous):

than just get rid of the 6x's and get x^2-36 or x^2+36

OpenStudy (goldrush18):

(x - 6)(x + 6) this is the difference of square \[(x-6)^2\] \[x^2-12x+36\] thats the answer

OpenStudy (anonymous):

x^2 -36

OpenStudy (anonymous):

yep my answer of x^2-36 was correct I checked

OpenStudy (anonymous):

that would only be the answre if the question is the question was (x-6)^2 @GoldRush18

OpenStudy (anonymous):

but thethe question is (x-6)(x+6)

OpenStudy (goldrush18):

oh ok guess i misinterpreted it

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