Problema Solution
A rectangle has a length of x+5 and a width of x-5 and has an area of 56 square units. Find the length and width of the rectangle.
Answer provided by our tutors
x+5(x-5) =56
x^2 -5x+5x-25=56
x^2=81
x=9
hence sides are 9+5 =14 and 9-5=4