F.2 maths

2007-08-05 2:36 am
Factorize:
(1) x^2-25x+169


(2) Dicky is given $65 to buy apples and orranges for a birthday party. An apple cost$2, an orranga cost$1.5.

(a) Find the maximum and minimum number of fruits he can buy.

(b)Suppose he decides to buy at least 5 of each type of fruit .Find the maximum number of fruits he can buy,

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回答 (1)

2007-08-05 2:53 am
✔ 最佳答案
(1) the question should be x^2-26x+169

the answer is (x-13)^2

(2) max. no of apple is 65/2=32
max. no of orange is 65/1.5=43
therfore the max and min lie between 32 and 43

It is a clue for you to calculate the answer. Please try it yourself.


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