Question

C.
Simplify -(a2-b2+ 2ab)-( a2 +b2-2ab).​

Answer 1

Answer:

4ab

Step-by-step explanation:

-(a2-b2+ 2ab)-( a2 +b2-2ab).

=(a2+b2-2ab)-( a2 +b2-2ab).

=(a-b)2-(a-b)2

=(a-b+a-b)(a-b-a+b)

=-2b x -2a

=4ab

Answer 2

$\huge\mathcal\colorbox{skyblue}{\color{black}{AnSwEr~↓~↓~}}$

$\bf ({a}^{2} - {b}^{2} + 2ab) - ( {a}^{2} + {b}^{2} - 2ab) \\ \bf = a^{2} - b^{2} + 2ab - a^{2} - b^{2} + 2ab \\ \bf = (a^{2} - a^{2} ) + ( - b^{2} - b^{2} ) + (2ab + 2ab) \\ \bf = \color{blue}{ \underline{ \boxed{ \bf- {2b}^{2} + 4ab}}}$

$\huge\blue{\textbf{\textsf{Hope~it~helps..!!}}}$