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Maths year 11

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    (Original post by RDKGames)
    Correct method except you must've gotten carried away because at the very bottom, 5 and 5 do not make up 10 with multiplication.
    I got 2 root 35


    Can I have a few surd questions please
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    Sorry 10 root 7



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    (Original post by z_o_e)
    I got 2 root 35


    Can I have a few surd questions please
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    Incorrect. You missed out another root 5.
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    (Original post by z_o_e)
    Sorry 10 root 7



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    Yeah that's good.

    Try \sqrt{234}
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    (Original post by RDKGames)
    Yeah that's good.

    Try \sqrt{234}
    And I did this too


    Omg how did I learn to simplify them!
    I had a bit of a break from maths as you can tell!
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    (Original post by z_o_e)
    And I did this too


    Omg how did I learn to simplify them!
    I had a bit of a break from maths as you can tell!
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    Correct. Yeah, breaks help
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    (Original post by RDKGames)
    Yeah that's good.

    Try \sqrt{234}
    I don't really know about this...
    As 59 is a prime number


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    (Original post by z_o_e)
    I don't really know about this...
    As 59 is a prime number


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    Check your working again because 59 shouldn't even be in there
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    (Original post by RDKGames)
    Check your working again because 59 shouldn't even be in there
    Done it

    Can I have a few random ones expanding simplifying whatever... you know

    So I can move on

    I'm not sure if aqa wants more detail on surds? This is basic I think

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    (Original post by z_o_e)
    Done it

    Can I have a few random ones expanding simplifying whatever... you know

    So I can move on

    I'm not sure if aqa wants more detail on surds? This is basic I think

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    Yeah this is pretty basic simplification. Exams would want to see you apply this in more complicated questions such as expanding. Have a go at the one's I've posted before.

    (Original post by RDKGames)
    Simplify:
    2\sqrt2 \cdot \sqrt2
    6\sqrt5 \cdot 2\sqrt5
    3\sqrt9
    7\sqrt4 - 2\sqrt9
    3\sqrt8 - 2\sqrt{64}

    (Original post by RDKGames)
    (1+3\sqrt7)^2
    (2+\sqrt2)(3+\sqrt3)
    \frac{8}{2+6\sqrt10}
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    (Original post by RDKGames)
    Yeah this is pretty basic simplification. Exams would want to see you apply this in more complicated questions such as expanding. Have a go at the one's I've posted before.
    Shall I do them again?

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    (Original post by z_o_e)
    Shall I do them again?

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    Yes. Try not to look back on your book and attempt to get them right first time.
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    (Original post by RDKGames)
    Yeah this is pretty basic simplification. Exams would want to see you apply this in more complicated questions such as expanding. Have a go at the one's I've posted before.
    How do I subtract them?


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    (Original post by z_o_e)
    How do I subtract them?


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    Looks good.
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    (Original post by RDKGames)
    Looks good.
    I'm not sure how to minus surds

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    (Original post by z_o_e)
    I'm not sure how to minus surds

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    Well first simplify each individual term.
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    (Original post by RDKGames)
    Well first simplify each individual term.
    I got 8 for number 4

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    (Original post by z_o_e)
    I got 8 for number 4

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    Correct.
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    (Original post by RDKGames)
    Correct.
    And this?

    Shall I add the 8 in front of the 2


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    (Original post by z_o_e)
    And this?

    Shall I add the 8 in front of the 2


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    Careful. You decomposed the roots correctly, but remember that you are also multiplying those roots by the 3 and 2 which you forgot to include.
 
 
 
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