Age-product quadratic model

Age-product quadratic model

Secondary 2
6 marks
TGM Original Questions

Optional extension

Nora is \(x\) years old and her father is four times her age. Six years ago their age product was \(580\).

  1. Form and simplify a quadratic.[2]
  2. Solve it.[2]
  3. Find her father’s present age.[2]

Solution:

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Answer:(a) \(2x^2-15x-272=0\) (b) \(x=16\) (c) \(64\) years.

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