Question

teacher i have a dout​

Answer 1

Answer:

the answer is 6b square

pls mark as brainiest

Answer 2

$- 2 {a}^{3} - [ a - b - \{ a + b + c - ( - 2 {a}^{3} - 2b - 3c)\}]$

$\implies - 2 {a}^{3} - [ a - b -a - b - c - 2 {a}^{3} - 2b - 3c]$

$\implies - 2 {a}^{3} - [ - 2b - c - 2 {a}^{3} - 2b - 3c]$

$\implies - 2 {a}^{3} + 2b + c + 2 {a}^{3} + 2b + 3c$

$\implies 4b +4 c$

$\orange{\therefore 4(b + c )}$

HOPE IT HELPS!!