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
Maths help Watch
- Thread Starter
- 13-10-2017 18:38
- 13-10-2017 18:40
Have you tried anything? If so, please post a screenshot or similar and point out where you're stuck.