Question

$2 a^{2} + ab - \frac{ab}{2}$

Answer 1

Resposta: $a(4a + b)/2$

Explicação passo-a-passo:

                                             $2a^{2} + ab - ab/2\\2a^{2} + 2ab-ab/2\\2a^{2} + ab/2\\4a^{2} + ab/2\\a(4a + b)/2$