Question

15y²z³ - 20y³z4

- 25y²z²​

Answer 1

Answer:

$- 15 {y}^{2} {z}^{3} - 20 {y}^{3} z4 - 25 {y {}^{} }^{2} {z}^{2}$

$talking \: - 5 {y}^{2} \: common$

$= - 5 {y}^{2} (3 {z}^{3} - 4yz4 - 5 {z)}^{2}$