(a) ab - 2a^2b + 3a^2b^10

(b) 16x^2 - 9x^2

a)

ab(1 - 2a + 3ab^9)

b)

= 7x^2

Factor:

a) ab - 2a^2b + 3a^2b^10

Factor out the Greatest Common Factor (GCF) = ab

Simplify:

b) 16x^2 - 9x^2 = 7x^2

Answer:

7x^2