pearl1234 pearl1234

25-08-2019
Mathematics

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(a 3 - 2a + 5) - (4a 3 - 5a 2 + a - 2)

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jimrgrant1 jimrgrant1

25-08-2019

Answer:

- 3a³ + 5a² - 3a + 7

Step-by-step explanation:

Given

(a³ - 2a + 5) - (4a³ - 5a² + a - 2)

Distribute both parenthesis noting the second is distributed by - 1

= a³ - 2a + 5 - 4a³ + 5a² - a + 2 ← collect like terms

= (a³ - 4a³ ) + 5a² + (- 2a - a) + (5 + 2)

= - 3a³ + 5a² - 3a + 7

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