Question

Factorise it :
-2ab-(a²-b²)
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Answer 1

$- 2ab( {a }^{2} - {b}^{2} ) \\ - 2 {a}^{3} b - 2a {b}^{3}$

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Answer 2

Answer:

2ab-(a2-b2)

first step : a2-b2

a2 is 22 b2 is 44

second step : 22-44=22

-2ab is a2 is 22 -b2 is 44

so 22-44=22

( so, total is 22 so soulation is 22 )