Which is a factor of 6x2y + 8x2 – 30y – 40 ?

x – 4

3y + 4

x2 + 4

3y – 5

If you would like to find a factor of 6x^2y + 8x^2 - 30y - 40, you can calculate this using the following steps:

6x^2y + 8x^2 - 30y - 40 = 2x^2 * (3y + 4) - 10 * (3y + 4) = (3y + 4) * (2x^2 - 10) = 2 * (3y + 4) * (x^2 - 5)

The correct result would be 3y + 4.