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Maths year 11 Watch

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    (Original post by RDKGames)
    Good.
    Now I added the like terms



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    (Original post by z_o_e)
    Now I added the like terms



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    Yep
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    (Original post by RDKGames)
    Yep
    I got this


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    (Original post by z_o_e)
    I got this


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    Yeah you can go further than that.
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    (Original post by RDKGames)
    Yeah you can go further than that.
    Can I do -6 root 4?

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    (Original post by z_o_e)
    Can I do -6 root 4?

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    No, why are you multiplying them...?
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    (Original post by RDKGames)
    No, why are you multiplying them...?
    Do I just leave them as they are?

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    (Original post by RDKGames)
    No, why are you multiplying them...?


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    heyyyy you got there
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    wouldn't it be 1root2 - 2 + 6 = 1root2 + 4
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    (Original post by RDKGames)
    heyyyy you got there
    Yaaaaay

    Thank you

    I just thought hard and got it

    Do you mind giving me 3 examples of similar surd questions including simplifying and expanding and any haha x

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    (Original post by 4nonymous)
    wouldn't it be 1root2 - 2 + 6 = 1root2 + 4
    (Original post by z_o_e)
    Yaaaaay

    Thank you

    I just thought hard and got it

    Do you mind giving me 3 examples of similar surd questions including simplifying and expanding and any haha x

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    Yep it should be. After spending a while on hoping you would realise that root 4 is 2 I completely disregarded the sign lol.
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    (Original post by z_o_e)
    Yaaaaay

    Thank you

    I just thought hard and got it

    Do you mind giving me 3 examples of similar surd questions including simplifying and expanding and any haha x

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    (1+3\sqrt7)^2

    (2+\sqrt2)(3+\sqrt3)

    \frac{8}{2+6\sqrt10}
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    (Original post by RDKGames)
    (1+3\sqrt7)^2

    (2+\sqrt2)(3+\sqrt3)

    \frac{8}{2+6\sqrt10}

    How do I multiply 3 root 7 by 3 root 3?

    I think I need to work on adding and subtracting surds tomorrow and division..etc
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    (Original post by z_o_e)
    How do I multiply 3 root 7 by 3 root 3?

    I think I need to work on adding and subtracting surds tomorrow and division..etc
    Why would you multiply 3 root 7 by 3 root 3? Where are you getting this from?
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    (Original post by RDKGames)
    Why would you multiply 3 root 7 by 3 root 3? Where are you getting this from?
    Sorry did it again...

    How do I solve the second bracket



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    (Original post by z_o_e)
    Sorry did it again...

    How do I solve the second bracket



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    Well you have 3 x 3 x root7 x root7 so do whatever you think is right here.
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    (Original post by RDKGames)
    Well you have 3 x 3 x root7 x root7 so do whatever you think is right here.
    I'm not sure. I think root 7 stays and I multiply 3*3

    so 9 root 7
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    I get stuck on these steps


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    (Original post by z_o_e)
    I'm not sure. I think root 7 stays and I multiply 3*3

    so 9 root 7
    3*3*root7*root7

    3-3=9
    root7*root7=7
    (remember when you multiply roots you just multiply the numbers on the inside so here you get root 49 = 7 although its easier to just know that the same roots multiplied you just get rid of the root)

    so its 9*7=63
 
 
 
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