(c) a^2 - 3a^2 - 5a + 4 from 3a^3 - a^2 + 2a – 4.
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Answer:
2a³ + 2a² + 7a - 8
Step-by-step explanation:
a^2 - 3a^2 - 5a + 4 from 3a^3 - a^2 + 2a – 4.
3a³ - a² + 2a - 4 - (a³ - 3a² - 5a + 4)
When we open bracket the sign of inner expression will change. (+ve into -ve and -ve into +ve)
3a³ - a² + 2a - 4 - a³ + 3a² + 5a - 4
2a³ + 2a² + 7a - 8
Answered by
1
Answer:
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