Question

simplifica :

{-a+b[b-3+(2-3a)]}=​

Answer 1

Respuesta:

$[-a+b(b-3+(2-3a))] \\ [-a+b(b-3+2-3a)] \\ [-a+b(b-1-3a)] \\ - ab + 1 + 3 {a}^{2} + {b}^{2} - b - 3ab \\ - 4ab + 1 + 3 {a}^{2} + {b}^{2} - b$