Question

please answer this question very fast. N0.3 ka answer do......​

Answer 1

Step-by-step explanation:

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

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

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

$4a {}^{2} + 2ab + b {}^{2} (taken \: common$

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