how to factor ou the gcf 42x^6y^8-30x^2y^6-30x^4y^3

Question

i need to see it worked out

Answer 1

42x^6y^8 = 2 * 3 * 7 * x * x * x * x * x * x * y * y * y * y * y * y * y * y

30x^2y^6 = 2 * 3 * 5 * x * x * y * y * y * y * y * y

30x^4y^3 = 2 * 3 * 5 * x * x * x * x * y * y * y

The GCF is made of the factors that appear in both 42x^6y^8, 30x^2y^6, and 30x^4y^3.  In this case that's 2 * 3 * x * x * y * y * y = 6x^2y^3

Answer:  The GCF of 42x^6y^8, 30x^2y^6, and 30x^4y^3 is 6x^2y^3.