Answer:
8 + 7x³ - 5x² + 7x - 14
Explanation:
(8 + 7x³ - 5) - (5x² - 7x + 9)
remove first parenthesis and distribue second by - 1
= 8 + 7x³ - 5 - 5x² + 7x - 9 ← collect like terms
= 8 + 7x³ - 5x² + 7x - 14 ← in standard form
9.5m questions
12.2m answers
+ 7x³ - 5x² + 7x - 14 + 7x³ - 5) - (5x² - 7x + 9) + 7x³ - 5 - 5x² + 7x - 9 ← collect like terms + 7x³ - 5x² + 7x - 14 ← in standard form