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    i'm working through some further maths questions and i really don't get how you can find both x and y from this, can anyone help?

    so the question asks to work out the values of x and y such that:
    (√3+5)(√3+4) = x + y√3

    i can get as far as expanding it to 23 + 9√3 = x + y√3
    but i don't know how to find x or y without knowing one of the values.
    am i supposed to give y in terms of x, and vice versa, or get a number/surd as an answer?
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    (Original post by ithinkitslily)
    i'm working through some further maths questions and i really don't get how you can find both x and y from this, can anyone help?

    so the question asks to work out the values of x and y such that:
    (√3+5)(√3+4) = x + y√3

    i can get as far as expanding it to 23 + 9√3 = x + y√3
    but i don't know how to find x or y without knowing one of the values.
    am i supposed to give y in terms of x, and vice versa, or get a number/surd as an answer?
    Compare the "surd" and "non-surd" parts.

    So if 23 + 9\sqrt{3} = x + y\sqrt{3} then x = 23 and y = 9.
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    (Original post by Zacken)
    Compare the "surd" and "non-surd" parts.

    So if 23 + 9\sqrt{3} = x + y\sqrt{3} then 23 = x and y = 9.
    omg that's much simpler than i expected lol
    thank you !!
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    Also, please try and post maths queries on the maths forum in the future.
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    (Original post by ithinkitslily)
    omg that's much simpler than i expected lol
    thank you !!
    You're welcome.
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    (Original post by Zacken)
    Compare the "surd" and "non-surd" parts.

    So if 23 + 9\sqrt{3} = x + y\sqrt{3} then x = 23 and y = 9.
    When Zacken got there before you did.

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    (Original post by XxKingSniprxX)
    When Zacken got there before you did.
    :rofl:
 
 
 
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