Question

Разложить на множители:
36b³-12b²,
81a³-ab²,
-8x²-16xy-8y²,
5mn+15m-10n-30,
a⁴-625

Answer 1

$12 {b}^{2} (3b - 1)$
$a(81 {a}^{2} - {b}^{2} )$
$- 8( {x}^{2} + 2xy + {y}^{2} ) = - 8 {( x + y)}^{2}$
5 (mn+3m-2n-6)
$({a}^{2} - 25)( {a}^{2} + 25 )$