Surds.....

JoeyGames · Oct 12, 2016

Smeris · Oct 12, 2016

Which ones specifically dont you understand? like the ones with multiple -'s and +s?

They go in regular order, just convert first.
:'s and X's always go first, remember that.

Use this wonderful site to simplefy them http://www.a-calculator.com/surd/

i dont have homework and im really fucking bored, this is pretty basic to me so ones you dont know ill make for you xd

also this might be helpful
http://www.mathsteacher.com.au/year10/ch09_surds/04_operations/oper.htm

Tyla Jai · Oct 12, 2016

I am Year 12 and I still don't understand them (not that I need to know because I have passed my GCSEs) but MyMaths might be somewhat helpful? Liaising with your teacher during break or something will be the best option though.

JoeyGames · Oct 12, 2016

Thanks guys! And btw esteboon you should actually learn this....

Marxxman_ · Oct 12, 2016

Haven't done this shit in a while, so if I get something wrong, then don't complain.

1. √6 x √6 x √6 = √6x36 = 6√6
2. √50 = √2x25 = 5√2
3. √18/√8 = √2x9 / √2x4 = 3√2 / 2√2
4. 5√5 - 2√5 = 3√5
4(b). 8√7 + 3√7 = 11√7
5. √8 = √2x4 = 2√2
5(b). √12 = √3x4 = 2√3
5(c). √32 = √2x16 = 4√2
6. √15 / √3 = √5 / √1 = √5
7. 7√3 - 2√3 + √3 - 3√3 = 3√3
7(b). 5√7 + 4√7 - 8√7 = √7
8. 9√3 - 4√3 + √5 + 2√5 = 5√3 + 3√5
8(b). 10√2 + 4√7 - 6√2 = 4√2 + 4√7
9. √3 x √6 = √18 = √2x9 = 3√2
9(b). √8 x √18 = √144 = √4x36 = 6√4
10. (√7)^2 = √7 x √7 = √49 = 7
10(b). (4√2)^2 = 32
11.√3(√3-1) = 3 - √3
11(b). √5(√10 + √2) = √50 + √10 = 5√2 + √10
12. √12 x √8 = √96 = √6x16 = 4√6
13. (4 + √2)(6 - √2) = 22 + 2√2
14. (√6 + √3)(√6 - √3) = √36 - √9 = 3
14(b). (√5 - √12)(√2 + √5) = 3
15. (7 + √6)^2 = 55 + 14√6
16. 1 / √5 = √5 / 5
16(b) 5 / √3 = 5√3 / 3
17. √15 / √5 = √3
17(b). √3 / √6 = √2 / 2

JoeyGames · Oct 12, 2016

@Marxxman_ Thanks for the help and the rest of you too as i said already

Fasool · Oct 12, 2016

http://prntscr.com/cszab4

6 radical 6

http://prntscr.com/cszai9

5 radical 2

http://prntscr.com/cszaro

3 radical 2 OVER 2 radical 2

http://prntscr.com/cszavz

a) 3 radical 5
b) 11 radical 7

http://prntscr.com/cszb1n

4 radical 2

http://prntscr.com/cszb4d

Radical 5

http://prntscr.com/cszb8s

a)3 radical 3
b) Radical 7

I decided to answer some for you. I don't have a radical sign on my keyboard but at least you know the answer. Algebra is easy, I'm pretty sure about my answers but I'm still human so there might be some mistakes. I'll explain one for you. When you get a number with a radicant added to another number with the same radicant then you just add them normally. The radicant stays the same. It's really hard to explain through text so hopefully you understand what I mean.

For example 8 radical 7 + 10 radical 7 + 2 radical 7 = 20 radical 7.

-Edit- Didn't realize someone already answered them. RIP

JoeyGames · Oct 12, 2016

Welp @Fasool Thanks anyways!
Can a staff member close this thread please?

Surds.....

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