The area of the two triangles is given by the functions: area of triangle a: x2 + x area of triangle b: x2 – 3x which function represents the sum of the areas of the two triangles?

Sum of Areas = Area of A + Area of B

... = (x^2 +x) + (x^2 -3x)

... = x^2·(1 +1) +x·(1 -3)

... = 2x^2 -2x

The sum of the areas of the two triangles is represented by

... 2x^2 -2x

a is the correct

only 10/60 isn't equivalent

hope this : )