Question

2. Reduce:
${ - 23b}^{2} + \:15a \: { - 12b}^{2} - 15a$
Resolución:​

Answer 1

Respuesta:

${ - 23b}^{2} + \:15a \: { - 12b}^{2} - 15a \\ \\ - 23 {b}^{2} - 12 {b}^{2} \\ \\ - 35 {b}^{4}$