Question

pls tell with full method​

Answer 1

$3 {y}^{2} - 3 {y}^{3} - \frac{10 {y}^{4} }{3}$

Step-by-step explanation:

$given \\ (y + \frac{2 {y}^{2} }{5} )(3y - 5 {y}^{2} ) \\ = y \times 3y - y \times 5 {y}^{2} + \frac{ 2{y}^{2} }{3} \times 3y - \frac{2 {y}^{2} }{3} \times 5 {y}^{2} \\ = 3 {y}^{2} - 5 {y}^{3} + 2 {y}^{3} - \frac{10 {y}^{4} }{3} \\ = 3 {y}^{2} - 3 {y}^{3} - \frac{10 {y}^{4} }{3}$