Question

subtract 17a³ - 19a² from -19a² + 20a³​
explain too no scam pls and I want in a² and a³

Answer 1

Answer:

3 a^3

Step-by-step explanation:

-19a^2 + 20a^3 - ( 17a^3 - 19a^2)

-19a^3 + 20a^2 - 17a^3 + 19a^2

20a^3 - 17a^3 - 19a^2 + 19a^2

3a^3 + 0

3a^3.

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Answer 2

3a³

Step-by-step explanation:

At first enclose the expression which is to be subtracted

= -19a² + 20 a³ - ( 17a³ - 19 a ² )

Don't forget to put a minus sign before the bracket

= - 19a² + 20a³ - 17a³ + 19a²

Don't forget to change the signs

( Now collect the like terms )

= - 19a² + 19a² + 20a³ - 17³

3a²