Question

Which is the greatest common factor of the expression below?
32a²b2 + 36a²c2 – 16ab3

Answer 1

Explanation:

32a²b² = 2 * 2*2*2*2 * a² * b²

36a²c² = 2 * 2 * 3 * 3 * a² * c²

16ab³ = 2 * 2 * 2* 2 * a * b³

Greatest common factor = 2*2*a = 4a

32a²b² + 36a²c² - 16ab³ = 4a*(8ab² + 9ac² - 4b³)