UPSKILL MATH PLUS

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1. An open box is to be made from a square piece of material, \(24 \ cm\) on a side, by cutting equal squares from the corners and turning up the sides as shown in the below figure. Express the volume \(V\) of the box as a function of \(x\).
 
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A_13.png
 
Volume of the box \(=\)  \(cm^3\).
 
 
2. A function \(f\) is defined by \(f(x) = 3 - 2x\). Find \(x\) such that \(f(x^2) = (f(x))^2\).
 
The value of \(x\) \(=\)