awedude123 3 years ago (x - 6)(x + 6)

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

Now, tell me what you think.

3. Marzattack

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

4. AnimalAin

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

5. Marzattack

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

6. Marzattack

than all you have to do is simplify it

7. AnimalAin

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

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

9. Marzattack

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

10. SoccerManiac

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

11. Marzattack

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

12. GoldRush18

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

13. SoccerManiac

x^2 -36

14. Marzattack

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

15. SoccerManiac

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

16. SoccerManiac

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

17. GoldRush18

oh ok guess i misinterpreted it