Question

alguien que m ayude por favor
2a(a-b)-3b-(-a-b)

Answer 1

$\bf \textcolor{blue}{2a(a - b) - 3b - ( - a - b) = } \\ \\ \bf \textcolor{red}{2 {a}^{2} - 2ab - 3 b+ a + b = } \\ \\ \boxed {2 {a}^{2} - 2ab - 2b + a } \\ \\ \\ \bf \textcolor{turquoise}{ley \: de \: signos} \\ \\ \\ \bf \textcolor{green}{ + \times - = - } \\ \bf \textcolor{orange}{ - \times - = + } \\ \bf \textcolor{orange}{ + \times + = + } \\ \bf \textcolor{green}{ - \times + = - }$

Lasers✨