Math, asked by therissingphoenix, 9 days ago

Subtract
20a ^ 2 b + 5a b ^ 3 - 6ab - 15 from 10a b ^ 3 - 13a ^ 2 b - 9ab + 10

find it if you can​

Answers

Answered by preeti353615
1

Answer:

If we Subtract 20a ^ 2 b + 5a b ^ 3 - 6ab - 15from 10a b ^ 3 - 13a ^ 2 b - 9ab + 10 we get5a b ^ 3 -33a ^ 2 b - 3 ab + 25.

Step-by-step explanation:

Subtract 20a ^ 2 b + 5a b ^ 3 - 6ab - 15 from 10a b ^ 3 - 13a ^ 2 b - 9ab + 10

( 10a b ^ 3 - 13a ^ 2 b - 9ab + 10) - (20a ^ 2 b + 5a b ^ 3 - 6ab - 15)\\= 10a b ^ 3 - 13a ^ 2 b - 9ab + 10  -  20a ^ 2 b - 5a b ^ 3 + 6ab + 15\\ (change sign)

= 10a b ^ 3  - 5a b ^ 3  - 13a ^ 2 b -  20a ^ 2 b - 9ab + 6ab + 15 + 10 (arrange the similar terms)

= (10     - 5)a b ^ 3  +(- 13-  20)a ^ 2 b +(- 9+ 6)ab + (15 + 10)\\= 5a b ^ 3 -33a ^ 2 b - 3 ab + 25

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