Problema Solution
a rectangluar wooden frame has side lengths 5x and 7x+1. the rectangular opening for a picture has side lengths 3x and 5x. What is the area of the wooden part of the frame?Write your answer in factored form
Answer provided by our tutors
5x*(7x+1) - 3x*5x = 35x^2 + 5x - 15x^2 = 20x^2 + 5x = 5x(4x + 1)