Question

subtract
please give answer quickly ​

Answer 1

Answer:

10ab - 7a^2 - 7b^2

Step-by-step explanation:

Subtract

3ab - 2a^2 - 2b^2 - ( 5a^2 - 7ab + 5b^2 )

=> 3ab - 2a^2 - 2b^2 - 5a^2 + 7ab - 5b^2

=> 3ab + 7ab -2a^2 -5a^2 -2b^2 -5b^2

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=> 10ab - 7a^2 - 7b^2

Answer 2

Answer:

$4ab - 7 {a}^{2} - 7 {b}^{2}$

Step-by-step explanation:

$(3ab - 2 {a}^{2} - 2 {b}^{2} ) - (5 {a}^{2} - 7ab + 5 {b}^{2} ) \\ = 3ab - 2 {a}^{2} - 2 {b}^{2} - 5 {a}^{2} + 7ab - 5 {b}^{2} \\ = 4ab - 7 {a}^{2} - 7 {b}^{2}$

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