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Maths questions
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Hi,
I have been given mock Maths papers to look over in the Easter holidays in preparation for my GCSEs , but have come unstuck with several of the questions, and wonder if any of you could help? They are all algebra :-/
1. Show that x� + x� = 230.
2. x�-2mx = (x-m)� - k
i) Express k in terms of m.
ii) x�-2mx has a minmum value as x varies.
i)Find the minimum value of x�-2mx in terms of m.
ii)State the value of x for which this minimum value occurs in terms of m.
Thank you VERY much!!
Katie xxxx
I have been given mock Maths papers to look over in the Easter holidays in preparation for my GCSEs , but have come unstuck with several of the questions, and wonder if any of you could help? They are all algebra :-/
1. Show that x� + x� = 230.
2. x�-2mx = (x-m)� - k
i) Express k in terms of m.
ii) x�-2mx has a minmum value as x varies.
i)Find the minimum value of x�-2mx in terms of m.
ii)State the value of x for which this minimum value occurs in terms of m.
Thank you VERY much!!
Katie xxxx
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