Answer:
14y³ - 21y² + 49y - 42
Step-by-step explanation:
(7y - 7) x (2y² - y + 6)
Multiply second parenthesis by each term from te first parenthesis
7y x (2y² - y +6) -7 (2y² -y + 6)
Distribute 7y through parenthesis
14y³ - 7y² + 42y -7 (2y² - y + 6)
Distribute -7y through parenthesis
14y³ -7y² + 42y -14y² +7y - 42
Collect like terms
14y³ -21y² + 42y + 7y - 42
collect like terms
14y³ -21y² + 49y - 42
