Question

g) a(2a- b)(a+b) -3а (a + b)2=​

Answer 1

1)

$( {2a}^{2} - ab) \times (a + b) - 6a \times (a + b)$

2)

${2a}^{3} + 2a { }^{2} b - {a}^{2} b - ab {}^{2} - 6a {}^{2} - 6ab$

3) ответ:

${2a}^{3} + a {}^{2} b - ab {}^{2} - {6a}^{2} - 6b$