Question

X3 - 2x2 - 9 ; 5x3 + 2x + 9
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Answer 1

Answer:

Step-by-step explanation:

Hope it helps.

Step-by-step explanation:

x³ - 2x² - 9 + (5x³ + 2x + 9 )

⇒ x³ - 2x² - 9 + 5x³ + 2x + 9

⇒ x³ + 5x³ + 2x² + 2x [ We have written the like terms together]

⇒  6x³ + 2x² + 2x