Question

find value of (-a-b)2​

Answer 1

Answer:

$- a {}^{2} + b {}^{2} - 2ab \:$

Answer 2

Step-by-step explanation:

$( - a - b)^{2}$

$( - a - b)( - a - b)$

$- a( - a - b) - b( - a - b)$

${a}^{2} + ab + ab + {b}^{2}$

${a}^{2} + 2ab + {b}^{2}$

I hope it is helpful