Problema Solution
A property dealer offers a sale of plot of area 6x2-10xy-20y2 square units or area (2x-5y) (3x+4y)square units to a customer. If x=3 and y=1 is taken then which is abetter dealing for a customer? And if dealer suggest to purchase the plot of area ( 3x+4y) (2x-5y) then which moral value is being depicted??
Answer provided by our tutors
If you let x=3 and y=1, then:
So the quadratic equation defines 4 square feet while the factored expression defines 13 square feet. It will not matter which order two products are presented, they both define the same are (13 square feet).