Question

3.Simplify 3a2-4a2b +7 a2-b2-ab​

Answer 1

$\huge \mathbb\fcolorbox{black}{lavenderblush}{Answer♡}$

Step-by-step explanation:

$3 {a}^{2} - 4 {a}^{2} b \: + 7 {a}^{2} - {b}^{2} - ab \\ 10 {a}^{2} - {b}^{2} - ab - 4 {a}^{2} b \:$