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Further Maths GCSE Help

Can anyone help me on this question? I'm not sure if it is a typo or because it doesn't have have squared?ImageUploadedByStudent Room1465567282.473212.jpg


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BobbiBlue
OP
14
Need help on the second part of this question? Do I multiply the function by two and then solve?
ImageUploadedByStudent Room1465567882.585012.jpg


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Original post by BobbiBlue
Can anyone help me on this question? I'm not sure if it is a typo or because it doesn't have have squared?ImageUploadedByStudent Room1465567282.473212.jpg


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It's definitely a typo, you can't turn a quadratic into a linear expression by multiplying and adding constants, assuming a, b and c are just constants.
I would try to help you but I failed my exam :/
Original post by BobbiBlue
Need help on the second part of this question? Do I multiply the function by two and then solve?
ImageUploadedByStudent Room1465567882.585012.jpg


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g(2x) just means replace every x from g(x) with (2x)
so you get

g(2x) = (2x + 6) / 4x

Now the problem is very similar to the first part of the problem
Reply 5
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BobbiBlue
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14
Original post by samspedding
It's definitely a typo, you can't turn a quadratic into a linear expression by multiplying and adding constants, assuming a, b and c are just constants.


Good because I can do that ahaha, just wanted to make sure that you couldn't do it :smile:


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BobbiBlue
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Original post by U-GradeStudent
I would try to help you but I failed my exam :/


I'm sorry to hear that :frown: thanks for replying though :smile:


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Reply 7
Avatar for BobbiBlue
BobbiBlue
OP
14
Original post by samspedding
g(2x) just means replace every x from g(x) with (2x)
so you get

g(2x) = (2x + 6) / 4x

Now the problem is very similar to the first part of the problem


That seems really easy now, thank you very much :smile:


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Original post by BobbiBlue
I'm sorry to hear that :frown: thanks for replying though :smile:


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It's cool :biggrin:

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