Problema Solution
The length and width of the rectangle in the figure differ by 80 mm. Find the area of the rectangle in terms of y without using parentheses.
Answer provided by our tutors
Let 'x' represent the width then the length is 'x + 80'.
Since the area equals the product of the width and the length we have:
y = x(x + 80)
y = x^2 + 80x
y = x^2 + 80x is the expression for the area of the rectangle.