Question

subtract 3a³ - 2a² + 5a - 4 from -5a³ -a² + 3a - 7​

Answer 1

Answer:

8a³-a²+2a+3

Step-by-step explanation:

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Answer 2

Answer:

- 8a³ + a²-2a-3

Step-by-step explanation:

Substract 3a³ - 2a² + 5a - 4 from -5a³ -a² + 3a - 7​

-5a³ -a² + 3a - 7​ - ( 3a³ - 2a² + 5a - 4)

-5a³ -a² + 3a - 7​ - 3a³+ 2a² - 5a + 4

-5a³-3a³-a²+ 2a² + 3a - 5a - 7 + 4

- 8a³ + a²-2a-3

Note : -ve number multiply with positive number it make the result number -ve whereas when -ve multiply with -ve it give the result +ve.