Maths help
A piece of wire is bent into a rectangular shape with area 85 inches squared. the total perimeter is 60 inches and the rectangle is x^2 in long.
a)form an expression for the area of the rectangle
b)by substituting z for x^2 form a quadratic equation in z.
c) Hence work out all possible values of x
a)form an expression for the area of the rectangle
b)by substituting z for x^2 form a quadratic equation in z.
c) Hence work out all possible values of x
Have you tried anything? If so, please post a screenshot or similar and point out where you're stuck.
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