Answer:
4[tex]y^{5}[/tex] + 10[tex]y^{4}[/tex] - 2y³ - 5y²
Step-by-step explanation:
Each term in the second factor is multiplied by each term in the first factor, that is
2y²(2y³ + 5y²) - 1(2y³ + 5y²) ← distribute both parenthesis
= 4[tex]y^{5}[/tex] + 10[tex]y^{4}[/tex] - 2y³ - 5y²