Question

Select one of the factors of x^2 y^3−11x^2 y+6y^2−66.

a. (x^2y + 6)
b. (x^2y − 6)
c. (y^2 + 11)
d. (y − 3)

Answer 1

x^2 y^3−11x^2 y+6y^2−66
= x^2y(y^2 - 11) + 6(y^2 - 11)
= (x^2y + 6) (y^2 - 11)

answer
a. (x^2y + 6)